This is a fine intact Trifari rhinestone Clipmates duette brooch dress clip set with clips and brooch frame. The clips are both marked Trifari. The frame is marked Clipmates and patent number 2050804, which was filed and granted in 1936 to Alfred Philippe of New York.
This clip set measures 1.125" x 2.5" when assembled together.
Condition is good. As far as I can tell all stones are original. I note 2 darkened stones, 1 of which is the center marquis stone on one clip, the other a small round stone on the edge of other clip.
This brilliant sparkler would be a perfect vintage touch to a holiday outfit.