[rk3006]

Hi guys, I read the post on here about the ring and it reminded me about the one I have. I bought it years ago at a antique show, it's sterling silver and somewhat worn from use. On the front is a wing in a circle attached to a head or skull looks to be flying, on each side is a eagle holding the american flag shield. The inside is stamped 217th Aero Sqdn. I think it's from WW1 or WW2. Anybody know what this is? Thanks.