Vtg William Spratling Silver Inlaid Faux Tortoise Shell Celtic Knot Brooch Taxco

For sale. Gorgeous and rare vintage William Spratling .925 sterling silver Taxco made in Mexico Celtic knot pin. This pin has an inlay of what appears to be faux tortoise shell. Signature is in square script with a number 30 eagle. This denotes a 1964-1966 circa. The size is 1 7/8 by 1 3/4. Free shipping in US.