Home / United States / World War I / Metal Insignia / 1920’s-30’s Sterling Navy Observer Wing by Baur 1920’s-30’s Sterling Navy Observer Wing by Baur$350.00 Excellent condition, measures 2 3/4″, cast silver, Baur was a jewelry maker in the 1920’s-1940’s. 1920's-30's Sterling Navy Observer Wing by Baur quantity Add to cart Item Number: a153 Categories: Metal Insignia, Wings