I know one of the many ETSY artists can turning this sterling silver collar tip remnant into something interesting. No mark for Sterling silver , but it was tarnished like sterling when I found it, & cleaned up just like sterling silver. Measures 1-1/4 inch on each side, measures 1 inch across top. Silver Collar Tip Remnant, Horse Head & Western Ware Collar Tips, Vintage Tips, Ware, Vintage Ware, 1950S Collar Tip