My other U.S. Army M3-10A1-6 Lightweight Service Gas Mask that I got in today. This is a size Large universal made by APC from 1943 : r/gasmasks
M3 (Serbia) | Gas Mask and Respirator Wiki | Fandom
m3 mask, m3 mask Suppliers and Manufacturers at Alibaba.com
M3 Diaphragm Gas Mask Quesiton - FIELD & PERSONAL GEAR SECTION - U.S. Militaria Forum
Serbian M3 Gas Mask Kit [Dated 2022] : r/gasmasks
U.S. Army M3-10A1-6 Lightweight Service | Gas Mask King
OLD VIDEO) M3 vs M4 Lightweight Service Masks (U.S. WWII Gas Masks) - YouTube
Serbia Armed Forces M3 Protective Gas Mask - YuAntiques
U.S. ARMY 1943 M3 Diaphragm Gas Mask
M3-10A1-6 Lightweight Service Mask | Gas Mask and Respirator Wiki | Fandom
Original U.S. WWII M3 Diaphragm Gas Mask with M1VA1 Bag – International Military Antiques
M3-10A1-6 Lightweight Service Mask | Gas Mask and Respirator Wiki | Fandom
Serbian M3 : r/gasmasks
SERBIAN PROTECTIVE GAS MASK M3 | #1859670300
M-3 | Gas Mask and Respirator Wiki | Fandom
Protective mask - Trayal korporacija
M3 (Serbia) | Gas Mask and Respirator Wiki | Fandom
Permeable gear with the M3-IXA1-IVA1 Diaphragm gas mask. Permeable gear was used as early as WW1 and remained standard into the 1950s. My specific setup uses the second pattern “special” HBT uniform