Antique Adjustable Button Ring

Victorian Button Ring With Adjustable Shank       circa. 1880         American

A Victorian button mounted on a solid brass band which adjusts in ring size from 4 to 10   The face of the ring.....the button......is faceted french jet (black glass) in an elaborate brass setting.   This is a one-of-a-kind item.   The round  face of the ring measures 1 inch in diameter      9.3 g.     6.0 dwt

In pristine condition