WW 2 USN Navy Army Air Corps Air Force Sweetheart Pins

Description

Fantastic group of four (4) sweetheart pins from WW 2. First up is a USN pin with chain and looks like a destroyer attached. The ship clasp has, in very small letters, RONI.
Second is a 7th division U.S.A. with a shield attached with the chain. The 7th division pin has WITTLEMORE & CO, ATTLEBORO MASS. on the back. The third pin is a U.S. and attached to the chain looks to be a PBY plane. This one is unmarked. Last but not least in a two prop plane with a screw-back attachment. Not sure what type of plane it is, maybe a B25, but the back is marked with SS. Very nice group of unusual pins for your collection. The first picture shows actual size with the ruler.  They typically sell for 20 to 25 each on military websites.