For your consideration is a vintage WW2 Officer Branch Artillery collar lapel round disk shape gold pin. This is not flat but rounded top. It originally had a screw back that has had the screw conversion to use the butterfly clutch system. No markings.
I have recently acquired an estate with a lot of military pins, awards, etc. The gentleman of the estate was in WW2 and his father was in WW1. Items are listed as found. I have not cleaned them. Check my other listings for more from this estate as well as other vintage, antiques, collectibles, fabrics, clothing, holiday and more.