Original German WWII M40 Single Decal Luftwaffe Helmet with 55cm Liner & Broken Chinstrap - Stamped SE62 U.S. Documents & Books and the surviving YB-40s were

and the surviving YB-40s were converted back to standard B-17F configuration or used as gunnery trainers back in the States

The style however definitely indicates that this is a WWII grenade

and by sea

The included steel fitted leather scabbard is in great shape

Original German WWII M40 Single Decal Luftwaffe Helmet with 55cm Liner & Broken Chinstrap - Stamped SE62 U.S. Documents & Books and the surviving YB-40s wereOriginal Item: Only One Available. This is a very nice all original example of a Model 1940 German WWII helmet with a single Luftwaffe Eagle decal and size 55cm liner, as well as a broken chinstrap. This stamped sheet steel construction helmet still retains most of the original lightly textured Luftwaffe Fliegerblau (flyer's blue) paint, which utilized aluminum oxide as a texturing agent. There is scuffing to the paint and some worked in dirt, as well