this is a rare example of a early war M38 double decal fallschrimjager stahlhelm...very rare piece

M38 Double Decal Luftwaffe Fallschrimjager Helmet

This is the Japanese Tachikawa KI-55, codenamed Ida by the allies. There are only 3 examples left in the world and this is the only remaining trainer version. It resides in the Royal Thai Airforce Museum in Bangkok. The Thai airforce purchased 24 from Japan in 1942. The combat version (KI-36) were mainly used in China as they were no match for allied fighter planes, some were later used as Kamikaze planes.

 Japanese KI-55 "Ida" very rare plane

A  German World War II Panzer IV tank is half-buried in the ground on Bulgaria's southern border