Eisenberg fur/coat clip.  The hinge is nice and tight and just look at that lovely patina on the silver.  It is 1 3/4" wide and almost 2 1/2" long.  The stones are in remarkable shape considering the age and appear original to the piece.  It is signed Eisenberg in block under the prongs and it is signed sterling on both the clip mechanism and the back of the piece.  [larger view] [back view]  $575.00 #020104-1