This is an original rare example of the WWII M30 German gas mask made specifically for radio operators in the Kriegsmarine. Mask is still pliable, all straps are present. Has the KM proof mark on the inner portion of the mask. Microphone port with cap is located on the right side of the mask. None of the electronics are included. Hinged lid and latch work fine on the canister. Canister is very clean, retains about 90% of original paint. No dents. Lid is dated 1943. Has all the straps, though the shoulder strap is mismatched. Mask and filter are also very clean and appear to be unused. Has spare lens covers too.