Lot 11015 – 1924 15k INVERTED SURCHARGE COVER TO PARIS: Regist

1924 15k INVERTED SURCHARGE COVER TO PARIS: Registered airmail cover from the Kazakoff Correspondence franked by 1924 Airs 5k on 3R (2) + 15k on 1R + 15k on 1R with INVERTED SURCHARGE + 20k on 10R, all bearing MOSKVA 10.10.24 cds, with red “Mit Luftpost befördert Bahnpostamt 4” and violet boxed “Mit Luftpost,” at back also 1923 exchange control stamp 1k on 1r, very fine, cert. Eichele, sent by the famous L. K. Eichfuss (much involved in early Soviet philately). Important and probably unique airmail cover and rare exhibiton item