Vintage stamped silver ring amber square cabochon glows sz 7.25 boho

Vintage stamped silver ring amber square cabochon glows sz 7.25 boho. Gorgeous amber set in a delicate band with a feel between Art Deco and Modernist. Small stamp on outside of rear band. Amber piece glows under black light. Sits at size 7.25 on my ring sizer. Good condition. Light wear. Light aging to metal. Silver mark present but illegible. Please refer to photos for additional condition details. 3E