This is an antique or vintage eye-catching art deco era brooch pin with the initials HAC. No hallmarks believe to be a silver tone metal. Measures 1 7/8 in x 1 1/4 in. The initials are set in a track and an experienced jeweler may be able to rearrange them.  

Very Good used condition, with minimal wear from age.  There may be a very few missing marcasites but the pin sparkles as it should. Unfortunately the photos don't show the shine.  

Please see scans to judge condition.  

Payment is appreciated within 3 days of auction end.