I’ve searched quite a bit but haven’t found any pin/pendant quite like this one. I inherited it, and believe that it was purchased sometime in the '80s or '90s. The hallmark looks like the letters VA with what looks to be a pipe underneath. I would appreciate any insights on the origin of this piece as well as the type of turquoise and whether I am correct in assuming that the cabochon stone is coral (It looks a bit more translucent than most coral, though.) Thanks!