This is a US Coast guard Auxiliary pin. It is about 1 inch in diameter and has 2 pins and clips on the back. The name Krew (maker) is engraved on the back. I am selling an estate so there will be a bunch of different items listed over the next few months As with all my auctions, I do combine shipping so just let me know if you are bidding on multiple items so I can combine them to give you the best price.