WWII era ~82 year old awesome collectible USGI STADIMETER labeled U.S. NAVY - BU. Ships (aka Bureau of Ships) Mark III - Mod. 1942. This equipment comes with the original black leather protective carry case. Instructions on placard: “ - INSTRUCTIONS - ” “ROTATE KNOB UNTIL OBJECT IS SPANNED” “BETWEEN LINE ON GLASS AND MOVABLE SIGHT.” “READ RANGE OPPOSITE KNOWN HEIGHT.” “(IF LENGTH INSTEAD OF HEIGHT IS KNOWN” “USE INSTRUMENT ON ITS SIDE).” Case has age-related wear - instrument is in excellent Vintage condition. Dial moves freely - eye piece clear (It is very small). Any U. S. Navy veteran or memorabilia collector would appreciate owning this interesting instrument and piece of history for their collection and/or for display among their other collectible pieces. Please see photos.