bigcypresshunter said:I think its a symbol of a buckle brooch. The back looks like a self shank 20th century. Civilian fashion.
I dont have time to search but you get the idea.
bigcypresshunter said:I have never seen one before so its not common but I found the design on the Waterbury site in the fashion section. http://www.waterburybutton.com/cart/pc/viewPrd.asp?idcategory=0&idproduct=28920