New old stock vintage WWII "Sweetheart in Service" pin - still on the original card and wrapped in cellophane! The brooch is made by Coro (a slightly higher end designer in the 30s/40s). It is marked "Sterling Pat. Pend." as well.
We have a few of these available, the size of the cards vary and the cellophane is tearing and very delicate (it will probably tear when you take the pin out). Some of them have the original price tag on the back - these pins originally cost about the same as a dress! All pins are in excellent condition.
The brooch measures approximately 1 1/8" long and about 5/8" wide.
We also have this pin for Husband and Brother.