This piece was crafted using a vintage industrial stamp to mark items made in the USA. 

Monogram: USA

Accents/Accessories: Loose bail; Elongated oval shape; Smooth border; Shiny finish with oxidization

Size: 16 x 24 millimeters (0.63 x 0.94 inches)

Weight: 2.70 grams (0.10 ounces)

Sterling Silver Chain as shown: 16 inches - $25.00 or 18 inches - $35.00