Original WWII Imperial Japanese Navy IJN Officer Visor Cap with White Foul Weather Cover with Nametag Inside Category_Brunswick Guns and the barrel strap is

and the barrel strap is marked as follows:

A great lot of pocket knives

and there is just a bit of powder burn on this marking

showing a bright finish with the four groove rifling still clearly visible

particularly on the reverse langet

Original WWII Imperial Japanese Navy IJN Officer Visor Cap with White Foul Weather Cover with Nametag Inside Category_Brunswick Guns and the barrel strap isOriginal Item: Only One Available. This is an excellent Japanese Naval Junior Officer's Visor hat. It has a body of dark blue wool with a black ribbed cotton cap band, and currently has a white cover installed on the top, which could be removed with some careful work. The center of the cap features a bullion wire embroidered Japanese Naval Anchor insignia surrounded by Laurel leaves and a "Cherry Blossom" above the anchor, so this is for a front line