Air Mail cover AIRMAILS: 1922(Aug.)-32 XU5 with 1922 (Aug.) registered from Moscow to Berlin bearing 10r. (13) and 5r., 1923 (Aug.) registered from Petrograd to Berlin bearing the black on red etiquette reading "Envoyé par la/poste aërienue" (the error "u" for "n"), 1923 (Oct.) from Petrograd to London with red etiquette similarly worded, but in manuscript, and one later. These early etiquettes are rare. (4)