United States. Four Air Force Navigator/Observer Badges (Now Called Combat Systems Officer Badge) United Republic of with an overall length of

with an overall length of 700 mm

black paper backer exhibits wear exposing the aluminum bullion wire

ornate black hour and minute hands

a horizontal pinback and single stay

insignia and cross

United States. Four Air Force Navigator/Observer Badges (Now Called Combat Systems Officer Badge) United Republic of with an overall length ofBasic Badge (in silver filled metal, maker marked "ANTAYA G. I." and marked "1 20 SILVER FILLED" on the reverse, measuring 76. 5 mm (w) x 25 mm (h), dual push pins); Senior Badge (in silver filled metal, marked "1 20 SILVER FILLED KREW G I" on the reverse, measuring 76. 2 mm (w) x 33 mm (h), dual push pins); Master Badge (in silver filled metal, marked "1 20 SILVER FILLED KREW G I" on the reverse, measuring 76. 3 mm (w) x 36. 3 mm (h), dual push