I'm listing several pieces today all from one estate. They were all purchased in<br>pawn shops in Albuquerque, NM in the 1970's and 1980's. Most pieces are circa<br>mid 20th century. Unmarked other than three letters engraved on back possibly by<br>a previous owner. Nice design and cool agate. 2.25" innner width 2" depth in<br>widest spot in center. Guaranteed sterling silver and naturan stone.