Circa 1950s-1960s, Midcentury.

Back of brooch is stamped "1/20 12K GF AMCO". Unsure what green stone is. It is a genuine stone and is cold to the touch, possibly jade.

A. Micallef and Company (AMCO) was founded in Providence, RI, the USA in 1919. However, the signature “AMCO” first appeared on jewelry in 1935. The company produced costume jewellery of amazing beauty made of gold, or gold filled and silver products: rings, cameos, brooches, pendants, bracelets, and earrings. The company ceased to exist in the 1970s, so now these vintage items are of high value and continue to grow in value.

Measures approximately 2 inches long by 0.75 inch wide (at widest point). Weighs approximately 3.36 grams.

In good condition with no noticeable flaws. Please see all photos.