Set of three Sterling Silver US Army LT Colonel rank/shoulder pins. They were part of a mixed lot of WWII jewelry that was part of an estate liquidation. They measure 1 1/8" high x 1 1/16" at the widest point. Marked on the reverse, M.A.C.O. sterling and weigh 8 grams each, or 24 grams combined. In very good vintage condition. The pin mechanisms are in good working order.