Vintage 1930s Art Deco SIZE 6 1/2 US platinum wedding band

A patterned platinum wedding band made in the U.S.A. in the 1930s. We can assume that this band dates to the interwar period (roughly 1920-1940), since platinum was prohibited for civilian use during both WWI and WWII in the United States. This band is etched on three sides, with the outer edge mostly worn. Measurements: Size 6 1/2 US, 2.2mm wide, 3 grams Era: 1920s-1930s Markings: PLAT. FIDELES and the mark for Byard Brogan, Philadelphia, PA