A nice, getting hard to find, Imperial Japanese Navy Flight helmet, with early features like the button back ear covers and the adjustable tensioning strap. Well marked inside with the issue cloth tag of the Iida & Co Takashimaya manufacturers label in red and white. Plus a second period cloth label with the name Lloyd E. Thompson written in - clearly a "trophy" (note the second to last photo has been enhanced to better identify the name). According to Fold3 the...re were several Lloyd E. Thompsons in the war. Inside is soft and lush - like velvet. This style of cap was worn by any and all IJN pilots and would be described as a early- to mid war summer flight helmet. The leather is in very good condition. All the hardware is there and functional. Please let me know if you have any other questions. Cheers!