Vintage 18K Gold Plated Turquoise Mouse with Dangling Tail Ring Size 5.75

Super cool and unique gold plated mouse with turquoise stone body and dangling tail ring. It was adjustable but welded together at some point to fit a size 5.75. The welding process hid whatever makers mark there was but something appears to be popping out behind the band. I did take the ring to a jeweler to have it tested and that’s where I found it’s 18K gold plated vs. solid gold. You can see the tiny place where they filed the ring to check. Aside from that it’s in near perfect condition and I was unable to find any other examples like it online. From a high end estate sale.