Vintage STERLING OVERLAY Arab Rosettes Conchos Mexico 1-3/4" Loop Backs

Vintage 1-3/4"Arab rosettes marked Mexico Silver Overlay on the backs. I'm presuming the gold overlay/plating to be jeweler's bronze or brass.There are some patina variations on the Arab heads and slight loss of the gold plating on the rosette edges (on the back sides) which is only noticeable on very close inspection. The "sandpaper" style background reminds me of vintage Cortes or Fleming, but no maker's mark to confirm that. I included a "before" photo of the back with original price tag of $75 EACH. The marks are circled to help locate as they are small, not deep and the backs are super reflective after clean up. Loops will accommodate up to a 3/4" wide strap. One loop has been bent over slightly, presumably to make for a tighter fit. Questions? Please ask prior to purchasing. For items purchased at the same time, I will combine on shipping whenever feasible.Please see my other listings and check back often as I am downsizing a large collection of quality new, lightly used and vintage strap goods, bits, bosals, hardware and more. From smoke-free home and stored indoors at all times.