Well I think it's a scarf clip - never seen another - looked for one - couldn't find one. Calling it a trembler because when you squeeze the wings the backside opens up to clip on anything I guess. It's a brushed gold plate with pave set round and baguettes. 3 graduated faux pearls. This piece measures 1 5/8" across the wings and 1 and 1/2" long. Pretty minty for such an older piece and the only one I have.