Pin made in Soviet Russia. The pin shows the Tupolev ANT-7. The text on the pin reads:”The first polar explorer float″, “Air cruiser” and “Reconnaissance flight over the North Pole”.
The Tupolev ANT-7, known by the VVS as the Tupolev R-6, was a reconnaissance aircraft and escort fighter of the Soviet Union.
The R-6 traces its roots back to early 1928 when the Soviet Air Force needed a long-range multirole aircraft. The requirements were that it could be used for long-range transport, defensive patrolling, reconnaissance, light bombing and torpedo attack.