Vintage 1950’s Copper Convertible Medallion Brooch Pendant Grape Leaf Motif

Vintage 1950’s MCM Copper Convertible Medallion Brooch or Pendant For A Necklace With Grape Leaves Motif Measures 1 7/8" Wide x 2" Long I Believe It's Made of Solid Copper As No Stick To Magnet I've Seen This Exact Brooch Signed By Roslyn Hoffman (Mid Century Modern Copper Artisan), But This Is Not Signed In Very Good Pre-owned Condition With Age Related Natural Patina