Auction #94 WORLDWIDE AIR POST STAMPS AND POSTAL HISTORY

1944, strongly shifted to the left dark blue surcharge 1Lv on Bulgaria 10st orange, bottom left corner sheet margin block of 45 (9x5) with two printer's imprints at bottom, representing numerous surcharge varieties, surcharge type I (position 95), broken first ''4'' in ''1944'' (most clearly on positions 52, 53, 63, 99), raised dot after ''8'' (position 87) and many more, full OG, NH, VF, Mi #1 I, II, III, XI, C.v. at least €1,100, Est. $350-$400