USA (PAGE 3)
TYPE: US Army M3 Diaphragm Gas Mask (1941 Mfg.)
ALIASES: n/a
DATE: c. 1940
FREQUENCY: Uncommon
USAGE: United States
FUNCTION: Military/Civilian
LMàG REFERENCE CODE: US-038
NOTES: In order to accommodate the necessity for a gas mask with an able speech diaphragm, the M3 Diaphragm Gas Mask was introduced. The front of the face piece was fitted with a metal speech diaphragm assembly which was situated just above a flutter type exhale valve. This configuration meant that the breathing tube could not be connected directly to the face piece. Instead, a hard plastic tube was fitted into two holes on either side of the face piece with the breathing tube connected to the center of the tube (angled slightly forward). The M3 Diaphragm mask was manufactured in significant numbers, and is thus not difficult to locate on the collector's market, however this early version with black metal parts and black head harness seems to be more scarce.
 
PRICE: $115
CONDITION: Mask is complete with filter and carrier and in very good condition.
 
TYPE: US Army M3 Diaphragm Gas Mask (1943 Mfg.)
ALIASES: n/a
DATE: c. 1940
FREQUENCY: Uncommon
USAGE: United States
FUNCTION: Military/Civilian
LMàG REFERENCE CODE: US-039
NOTES: This M3 Diaphragm Gas Mask is identical to the above mask in design, but has olive-drab painted metal parts and a matching head harness. This variation in color may simply be a result of different manufacturers, although there may be a functional purpose to color changes. The all green version pictured to the right seems to be the most commonly found on the collector's market.
 
PRICE: $115
CONDITION: Mask is complete with filter and carrier and in very good condition.
 
TYPE: US Army M3A1 Diaphragm Gas Mask
ALIASES: n/a
DATE: c. 1942
FREQUENCY: Common/Uncommon
USAGE: United States
FUNCTION: Military
LMàG REFERENCE CODE: US-040
NOTES: A modification to the speech diaphragm and exhale valve assembly of the M3 Diaphragm Gas Mask lead to the M3A1 Diaphragm Gas Mask. The M3A1 was essentially identical to the M3, but a new plastic voice-mitter/exhale valve assembly was used in place of the earlier metal type. The new parts were most likely functionally superior to the previous types as well as lighter. The M3A1 Diaphragm Gas Mask was manufactured in large numbers, thus is quite common on the collector's market today.
 
PRICE: $95
CONDITION: Mask is complete with filter and carrier and in very good condition.
 
TYPE: US Army Gas Mask (Reconditioned For Training)
ALIASES: n/a
DATE: c. 1950s
FREQUENCY: Uncommon
USAGE: United States
FUNCTION: Military
LMàG REFERENCE CODE: US-192
NOTES: After WWII, several left-over gas masks were "reconditioned" and used for training purposes. This particular mask, was made from M3A1 Diaphragm parts and equipped with a M10A1 filter canister. The mask's carrier was also altered to reflect that the mask was only to be used for training purposes.
 
PRICE: SOLD!
TYPE: US Army MI-I-5 Optical Gas Mask
ALIASES: Army Artillery Gas Mask, Army Tank Gas Mask
DATE: c. 1941
FREQUENCY: Scarce
USAGE: United States
FUNCTION: Military
LMàG REFERENCE CODE: US-041
NOTES: During the early stages of gas mask development in 1920s, it was apparent that a gas mask for use with optical sighting devices (like scopes and binoculars) was needed. In 1941, the Army designed and standardized the Army MI-I-5 Optical Gas Mask. It was more or less identical to the Navy version (below) but the two do have some significant differences. The distance between the small round eye pieces could be adjusted via a threaded rod, accommodating a wide range of head sizes. The mask's filter canister was suspended behind the wearer's neck by means of a metal clip on the filter that was attached to a canvas sleeve sewn onto the head harness. Inhaled air was drawn through a horizontal slit in the filter. Today, the Army MI Optical Gas Mask is among the rarest of the WWII US gas masks. While the Army version was not made in significant numbers, the Navy Diaphragm Optical Gas Mask was manufactured and issued in quantity to soldiers aboard ships.
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DETAILS
 
PRICE: SOLD!
TYPE: US Army MI-I-5 Optical Gas Mask
ALIASES: US NDO Mark I Gas Mask
DATE: c. 1941
FREQUENCY: Rare
USAGE: United States
FUNCTION: Military
LMàG REFERENCE CODE: US-042
NOTES: This US optical gas mask is most likely an updated Army version of the above green type. This mask is what would later be molded with the USN face piece and designated the Navy Diaphragm Optical (NDO) Mark I Gas Mask (see below). These early Army version are much more rare than the US Navy versions which were made in more significant numbers.
 
PRICE: SOLD!
TYPE: US Navy Diaphragm Optical (NDO) Mark I Gas Mask
ALIASES: n/a
DATE: c. 1941
FREQUENCY: Uncommon
USAGE: United States
FUNCTION: Navy
LMàG REFERENCE CODE: US-043
NOTES: For the Navy, a gas masks that could be used with optical sighting devices was in demand during WWII. As a result, a modified version of the Army MI Optical Gas Mask was made for use aboard ships. It was designated the Navy Diaphragm Optical Gas Mask, Mark I. Like the Army version, the distance between the small round eye pieces could be adjusted via a threaded rod, accommodating a wide range of head sizes. The mask's filter canister was suspended behind the wearer's neck with a metal clip, which was attached to the back of the head harness. From a series of small holes along the back of the filter, inhaled air was drawn through two corrugated rubber tubes and forced over the eye pieces to help keep them from fogging. While the N.D.O. Mark I is not as common as the later Navy Diaphragm masks, it is still fairly easy to find on the collector's market.
 
PRICE: $115
CONDITION: Mask is complete with filter and carrier and in very good condition.
 
TYPE: US Army/Navy Diaphragm Gas Mask
ALIASES: n/a
DATE: c. 1938
FREQUENCY: Rare/Scarce
USAGE: United States
FUNCTION: Army/Navy
LMàG REFERENCE CODE: US-206
NOTES: This early diaphragm mask was manufactured in 1938, and used the old style filter suspension method (see DETAILS below). This design, is what would eventually become standardized by the Navy, as the ND Mark III (see below). Both this version and the regular Navy version are quite similar, however this version does not bear a USN mold marking on the forehead, and has the older type filter clip on the back. This particular mask may have been used by the Army, or it may simply be an early production ND Mark III.
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DETAILS
 
PRICE: SOLD!
TYPE: US Navy Diaphragm (ND) Mark III Gas Mask
ALIASES: n/a
DATE: c. 1942
FREQUENCY: Uncommon/Rare
USAGE: United States
FUNCTION: Navy
LMàG REFERENCE CODE: US-044
NOTES: Following the same design as the earlier N.D.O. Mark I, the ND Mark III was manufactured. This mask was not an optical mask, but did have special elliptically shaped eye pieces designed to enhance peripheral vision. This is the only difference between the Mark I and the Mark III. The filter canister was suspended behind the neck in the same manner as well. This configuration was used to give the soldier's head more freedom while maneuvering in the confines of a ship. The Mark III was manufactured in significant enough numbers to make it somewhat common today, but it was replaced by the Mark IV, which was manufactured towards the end of the war, and in much greater numbers.
 
PRICE: $100
CONDITION: Mask is complete with filter and carrier and in very good condition.
 
TYPE: US Navy Diaphragm (ND) Mark IV Gas Mask
ALIASES: n/a
DATE: c. 1944
FREQUENCY: Common
USAGE: United States
FUNCTION: Navy
LMàG REFERENCE CODE: US-045
NOTES: The Navy Diaphragm Mark IV was nothing more than an improved Mark III. It was found that the elliptical eye pieces used on the Mark III where not as efficient as the larger triangular eye pieces used with the Mark IV. This is the only difference between the two masks. The Mark IV is perhaps one of the most commonly found W.W.II Navy masks today. It can still be found in un-issued condition packed inside it's original cardboard box.
 
PRICE: $80
CONDITION: Mask is complete with filter and carrier and in very good condition. Also come with original box.
 
TYPE: US Navy Diaphragm (ND) Mark IV Gas Mask
TYPE: (Modified for shallow water diving)
ALIASES: Damage-Control Hose Mask
DATE: c. 1944/1945
FREQUENCY: Scarce
USAGE: United States
FUNCTION: Navy
LMàG REFERENCE CODE: US-131
NOTES: In 1944 the Navy published several documents outlining the use of existing ND Mark III and IV gas masks for shallow water diving purposes. These masks were altered aboard ships and stowed in "damage-control" repair lockers. If needed, a diver could don the mask, which was connected to a air supply line, and dive up to depths of 36 feet. The peculiar example pictured to the right appears to fit the description of such modified gas masks almost perfectly. However, the example pictured to the right features an early Western Electric microphone in place of the diaphragm. The microphone connection cord has been cut, which means it could have been quite long (long enough for a 36 foot dive), and would also suggest that the microphone is water-proof as well as air-tight. The filter canister was removed and in place a "T" shaped brass connector was inserted and sealed with cement. These "on-the-fly" modified gas masks are quite scarce today in any condition.
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DETAILS
 
PRICE: SOLD!
TYPE: Unknown
ALIASES: n/a
DATE: c. 1939
FREQUENCY: Scarce
USAGE: United States
FUNCTION: Military
LMàG REFERENCE CODE: US-046
NOTES: The modified Mark III Diaphragm mask pictured to the right was manufactured by Acushnet and is dated 1939. The face piece used the US Army mold, which would make this mask an Army used mask and not a Navy mask, as with the below example. These modified Mark III Diaphragm masks may have been used as special purpose masks connected to a supplied air system, but their true function is not known.
 
PRICE: SOLD!
TYPE: Unknown
ALIASES: n/a
DATE: c. 1942
FREQUENCY: Scarce
USAGE: United States
FUNCTION: Military
LMàG REFERENCE CODE: US-132
NOTES: The modified Mark III Diaphragm mask pictured to the right was manufactured by MSA and is dated 1942. The face piece used the US Navy mold, which would make this mask an Navy used mask and not an Army mask, as with the above example. These modified Mark III Diaphragm masks may have been used as special purpose masks connected to a supplied air system, but their true function is not known.
 
PRICE: $275
CONDITION: Mask is in excellent condition.
 
TYPE: US Navy Oxygen Rescue Breathing Apparatus,
TYPE: Type A-I (NORBA Type A-1)
ALIASES: n/a
DATE: c. 1941
FREQUENCY: Rare
USAGE: United States
FUNCTION: Military (Navy)
LMàG REFERENCE CODE: US-047
NOTES: The Navy Oxygen Rescue Breathing Apparatus was made from modified ND Mark III and Mark IV gas mask molds and was housed in a large gray trunk (see DETAILS). The mask was used as a short term oxygen generating rescue apparatus for emergency situations where the oxygen level in the air was too low to sustain life, or other harmful gases were present. When the canister seal was broken, a chemical reaction forced oxygen into a large bladder that was worn around the front of the body. Expired air was breathed back into the canister and recycled back into oxygen for re-breathing. Each canister could be used for 30 to 45 minutes before a fresh canister had to be installed. A starter valve on the front of the mask allowed the wearer to breath outside air while the chemical reaction inflated the breathing bag with oxygen. Once this process was complete, the starter valve could be closed and re-breathing could begin. The N.O.R.B.A. is somewhat rare today, and when found most are in poor and/or incomplete condition.
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DETAILS
 
PRICE: $300
CONDITION: Mask is complete with rebreather unit, canisters and storage trunk, very good condition. EXTREMELY HEAVY!!!
 
TYPE: US Navy Smoke Mask, Model NM
ALIASES: n/a
DATE: c. 1941
FREQUENCY: Rare
USAGE: United States
FUNCTION: Military (Navy)
LMàG REFERENCE CODE: US-130
NOTES: The Navy Smoke Mask Model NM is very similar to the NORBA Type A-1 (above). The face piece assembly is virtually identical, but the rebreathing unit was quite different (see details). The Navy Smoke Mask was most likely employed for rescue work where high levels of smoke filled confined spaces and oxygen levels were too low to sustain life. The Model NM seems to be more commonly found today on the surplus market when compared with the other Navy rebreathers, but it is nonetheless rare.
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DETAILS
 
PRICE: $290
CONDITION: Mask is complete with rebreather unit and in very good condition. Comes with replica canister.
 
TYPE: US Navy Oxygen Rescue Breathing Apparatus,
TYPE: Type A-3 (NORBA Type A-3)
ALIASES: n/a
DATE: c. 1980s
FREQUENCY: Rare
USAGE: United States
FUNCTION: Military (Navy)
LMàG REFERENCE CODE: US-186
NOTES: The NORBA Type A-3 was an updated version of the Navy's earlier rebreathers. The Type A-3 used a face piece based on the Navy Diaphragm Mark IV gas mask from WWII, and went on to be used well into the 1980s before it was replaced by a newer design. The Type A-3 is somewhat difficult to find today, as are most Navy rebreather units.
 
PRICE: $60
CONDITION: Mask only, no rebreather unit or storage trunk, very good condition.
 
TYPE: US Navy Oxygen Breathing Apparatus, Type B
ALIASES: n/a
DATE: c. 1940s
FREQUENCY: Rare/Scarce
USAGE: United States
FUNCTION: Military (Navy)
LMàG REFERENCE CODE: US-193
NOTES: The Navy Oxygen Breathing Apparatus Type B was a smaller rebreather unit that was most likely used for escape purposes. The unit came with a small half mask which was attached to the rebreather via a small corrugated hose. The mask also came equipped with a speech diaphragm identical to those used with all of the Navy masks from the WWII era. Also included was a pair of Willson safety goggles and several replacement canisters. The unit was stowed in a large wooden crate.
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DETAILS
 
PRICE: $225
CONDITION: Mask is complete with rebreather unit and all accessories. Comes in original storage crate. EXTREMELY HEAVY!!!
 
TYPE: US Navy Oxygen Rebreathing Apparatus -
TYPE: Central Oxygen Supply Type
DATE: c. 1942
FREQUENCY: Rare/Scarce
USAGE: United States
FUNCTION: Military (Navy)
LMàG REFERENCE CODE: US-199
NOTES: The Central Supply Type Oxygen Rebreathing Apparatus was designed to be used by aviators at high altitudes, by supplying them with rebreathable air containing a high percentage of oxygen. The unit could be hooked up to a central oxygen reservoir for prolonged use. The unit could be either carried or stowed near the wearer during use. These bulky rebreathers are quite rare today, but when found are typically in un-issued condition.
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DETAILS
 
PRICE: SOLD!
 
TYPE: US Army M2-10-6 Lightweight Optical Gas Mask
ALIASES: n/a
DATE: c. 1944
FREQUENCY: Scarce
USAGE: United States
FUNCTION: Military (Army)
LMàG REFERENCE CODE: US-191
NOTES: The M2-10-6 was a new light-weight optical mask which took design elements from several earlier US Army masks. The optical eye pieces were identical to the Army MI-I-5 Optical Gas Mask, while the exhale valve/speech diaphragm assembly was identical to the M3A1 Diaphragm Gas Mask. Instead of carrying the filter canister behind the head (as with previous optical masks), the M2-10-6 used a M10 Filter canister attached to a long corrugated rubber hose, basically identical to the M3 and M4 series light-weight service masks. The M2-10-6 was most likely not manufactured in significant numbers, as this mask is quite scarce today. In the early 1950s, it was replaced by the more common M2-10A1-6 Lightweight Optical Gas Mask (see below).
 
PRICE: $675
CONDITION: Mask is complete with filter and carrier and in excellent, un-issued condition. Comes in original box and wrapper.
 
TYPE: US Army M2-10A1-6 Lightweight Optical Gas Mask
ALIASES: n/a
DATE: c. 1952
FREQUENCY: Uncommon
USAGE: United States
FUNCTION: Military (Army)
LMàG REFERENCE CODE: US-048
NOTES: The M2-10A1-6 is perhaps one of the strangest looking US gas masks. The speech diaphragm was protected by a metal mesh-like material giving it a peculiar appearance. The M2-10A1-6 used the same adjustable eye pieces that were used on the earlier Army Optical Gas Masks and the N.D.O. Mark I. A lightweight M10A1 filter canister was attached to the mask via a corrugated rubber breathing tube. The mask's main purpose was to provide the Army with a gas mask that could be accurately used with optical sighting devices like scopes and binoculars. The M2-10A1-6 was manufactured in quantity, and it can be found fairly easily with a little searching, and often in mint un-issued condition.
 
PRICE: SOLD!
TYPE: US Navy Diaphragm (ND) Gas Mask, Mark V
ALIASES: n/a
DATE: c. 1957
FREQUENCY: Uncommon
USAGE: United States
FUNCTION: Military (Navy)
LMàG REFERENCE CODE: US-049
NOTES: The US Navy Mark V Gas Mask is interesting in that it is the only US gas mask to use this particular setup; the design is nothing like the earlier Navy diaphragm gas masks. The Mark V used a single plastic visor type eye piece, which offered an excellent field of view, but on the same token was prone to fogging as there was no inner mask installed. An adjustable five strap rubber head harness was used for suspension and two C1 filter discs were used for filtration. The speech diaphragm and exhale valve are clearly visible on the front of the mask. The Mark V came in a special gray fabric carrier that was reinforced with an angled piece of flat metal. The ND Mark V can be found readily on the surplus market in excellent condition.
 
PRICE: $60
CONDITION: Mask is complete with filters and carrier and in very good condition.
 
TYPE: US E15R3 Protective Mask Headpiece
ALIASES: n/a
DATE: c. 1950s/1960s
FREQUENCY: Very Scarce
USAGE: United States
FUNCTION: Military
LMàG REFERENCE CODE: US-204
NOTES: This experimental mask was most likely designed during the testing of various types of gas hoods for use during decontamination duty. The E15R3 consisted of a butyl hood which was incorporated with a half-mask and head harness on the inside. Two large circular eye pieces were also fitted directly to the hood. Unlike most protective mask hoods, this device was intended to be a standalone mask, rather than a hood that could be worn over a standard issue respirator. The E15R3 pictured here, is shown with a MSA Rocket Propellant filter canister.
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DETAILS
 
PRICE: SOLD!
TYPE: US Army E48 Gas Mask
ALIASES: E19R25 (original M.I.T. designation)
DATE: c. late 1940s
FREQUENCY: Scarce
USAGE: United States
FUNCTION: Military (Army)
LMàG REFERENCE CODE: US-050
NOTES: After the failure of the M5 Assault Gas Mask, a new lightweight combat gas mask was in demand. The E48, later standardized as the M9 Field Protective Mask, was the basis for one of the most successful gas mask designs ever. For the most part, the E48 is identical to the standardized M9, however both the E48 and several early M9 gas masks were made from black rubber instead of the more common gray rubber used for the bulk of all M9 and M9A1 gas masks manufactured. Because the E48 was technically a prototype mask, it is not commonly found on the collector's market and is quite rare today in any condition.
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DETAILS
 
PRICE: $490
CONDITION: Mask is complete with filter and M9 style carrier and in very good condition.
 
TYPE: US Army M9 Field Protective Gas Mask
ALIASES: n/a
DATE: c. 1950s
FREQUENCY: Scarce
USAGE: United States
FUNCTION: Military (Army)
LMàG REFERENCE CODE: US-051
NOTES: The US Army M9 Field Protective Gas Mask is perhaps one of the most successful gas mask designs ever. It remained in use for approximately two decades and it has been copied by at least five countries. The M9 owes it's design to the earlier US E48 gas mask, which was an experimental upgrade based on the Army M5 Assault Gas Mask. The M9 pictured to the right is an early production example with a face piece made entirely from black rubber like the prototype E48 shown above. It is dated 1952. Aside from the use of black rubber, this M9 is identical to the standard gray rubber production model (see below).
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DETAILS
 
PRICE: $385
CONDITION: Mask is complete with filter and in very good condition, missing carrier.
 
TYPE: US Army M9/M9A1 Field Protective Gas Mask
ALIASES: n/a
DATE: c. 1951
FREQUENCY: Common
USAGE: United States
FUNCTION: Military/Civilian (Army/Police)
LMàG REFERENCE CODE: US-052
NOTES: The US Army M9 Field Protective Gas Mask is perhaps one of the most successful gas mask designs ever. It remained in use for approximately two decades and it has been copied by at least five countries. The only difference between the M9 and M9A1 are the carriers, the masks themselves are identical. The M9 design, was basically an upgraded version of the US M5-11-7 Assault Service Gas Mask. It used the same 60mm M11 drum type filter canister that was attached to the side of the mask. The M9 was most commonly manufactured with the filter inlet on the left side, however, a right side filer inlet version was also made. This was to accommodate left handed personnel during weapon sighting. Because the M9 was in service for so many years, it is now one of the most commonly found US gas masks on the surplus market.
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DETAILS
 
PRICE: SOLD!
TYPE: US Army M9/M9A1 Field Protective Gas Mask
TYPE: (Right sided filter inlet)
ALIASES: n/a
DATE: c. 1951
FREQUENCY: Uncommon
USAGE: United States
FUNCTION: Military/Civilian (Army/Police)
LMàG REFERENCE CODE: US-053
NOTES: This version of the US Army M9 Field Protective mask is basically identical to the above version, but was manufactured with the filter inlet on the right side. This was to accommodate left-handed soldiers when sighting their rifles. M9s with the filter on the right side are slightly more difficult to find today as fewer were manufactured.
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DETAILS
 
PRICE: $40
CONDITION: Mask is complete with filter and carrier and in very good condition.
 
TYPE: US Army M15 Compressed Air Breathing Apparatus
ALIASES: n/a
DATE: c . 1950s
FREQUENCY: Scarce
USAGE: United States
FUNCTION: Military (Army)
LMàG REFERENCE CODE: US-054
NOTES: The M15 Compressed Air Breathing Apparatus used the M9 face piece with a corrugated rubber hose attached to the side instead of the standard M11 filter. The hose was connected to two compressed air tanks that allowed closed circuit breathing. The M15 setup was most likely used for emergency situations where the oxygen levels were too low to sustain life. The heavy air canisters were strapped to a harness that allowed the wearer to sling the apparatus around the back. The M15 Compressed Air Breathing Apparatus is quite rare today as few were most likely manufactured.
 
PRICE: $245
CONDITION: Mask is complete with oxygen tanks, hose and storage trunk. EXTREMELY HEAVY!!!
 
TYPE: US Army ABC-M21 Rocket Propellant Gas Mask
ALIASES: n/a
DATE: c. 1950s
FREQUENCY: Very Scarce
USAGE: United States
FUNCTION: Military
LMàG REFERENCE CODE: US-055
NOTES: Like the M15 Compressed Air Breathing Apparatus, the ABC-M21 Rocket Propellant Gas Mask also used a standard M9 face piece. The corrugated rubber hose attached to the side of the mask was connected to a large filter manufactured to protect against rocket fuel fumes. The heavy filter canister was carried inside a leather sling and was worn around the wearer's neck. This setup is also very scarce today as few were likely manufactured.
 
PRICE: SOLD!
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