Silver over copper " silvering " Vintage marcasite ring

This "silvering" process was quite popular in the 1950s but not much these days. I have kept this as a middle finger ring for a long time as you can see the plated sterling has chipped to expose the copper base. I adore the front and am listing this vintage beauty quite low. size 8 Please see my extensive collection of fine jewelry antiques and other items. Purchase 2 items get 1 free in descending price order and thank you.