20 mm anti-aircraft shell filled with steel bbs. The projectile is removable, allowing for the addition or removal of the bbs. The primer has not been struck. Along the bottom of the shell it reads: "20-M.M.-MK.-II 1942"
Wooden base is two-tiered with a piece removed in the center for the 20 mm shell to rest vertically. Written on the underside of the base: "USS BASSETT APD 73 // SC1 E.R. HOUGHTALING"
