...from the type of pin clasp on the backside and the marking of "Sterling Front," this little mystery pin I would guess is 1920s-1930's..... "UMC" or "VMC" sterling arrow pin with number 16 at top... (Remington arrow shells, No. 16?) (Boy Scout Arrow pin, Camp 16?) (Virginia Military? )... Please include $3.95 for domestic s/h (Global s/h $18.95)...  Thanks for stopping by!