Russian empire. Badge of the 31st Corps air squadron of the Russian Imperial army. The date of approval is not exactly known , but not earlier than 1917. The sign is an overhead "Adam's" head-a symbol of immortality on top of the crossed propeller of an airplane and a sword. On the reverse, the engraving " 31A. O." and the initials "S. G." of the sign Details are fastened together with a nut on a screw. A black moire bow was worn under the sign. Rarity!!! Unique!!!
Silver plated light bronze. Size 35*60mm . Weight 25gram.