Lot 674
1924, Airmail 15 k. on 1 r. and vertical strip of 4 20 k. on 10 r. and postage stamp 3 k. brown-red, all tied by cds. "LENINGRAD 4.6.26" to reverse to registered airmail cover via Moskau with bilingual airmail label and Berlin with German airmail cachet (on reverse) to Elberfeld with arrival mark, cover creased and two stamps with corner faults
