Rare old vintage secret compartment ring! Oversized, sliding door. These rings were made back in the day to secretly poison the enemy over cocktails! Wear it on a date as a joke! That’s what I did! Not ring gold, excessive wear will cause the green coloring. A clear coat of polish will stop this. Or keep as a work of art! Museum quality piece Fits like a modern US 7.5-8 *FLAWED* LAST ONE DOES NOT OPEN. Could take to jewelry to adjust. 50% off sold price Last 3 pictures actual item.