1928, First Flight Across the Adriatic, black 4-line overprint on 5q-3fr, complete set of seven, full OG, NH, VF, Mi #162-68, €450, Est. $150-$200

75.00

1929, red brown overprint on Airplane Crossing Mountains, 5q-3fr, complete set of seven, perfect quality item, full OG, NH, VF and scarce, a little over 1000 complete sets possible, each stamp expertized by H. Sieger, Mi #210-16, €1,800, Est. $600-$800

300.00

1931, Tirana - Rome Flight, double black overprint on 5q green and inverted overprint on 3fr purple, large part of OG, VF, each one with Kessler guarantee, 3fr in addition with Sanabria hs, C.v. $415

100.00

1962, Yuri Gagarin's Space Flight, maroon overprints "Posta Ajore" on 50q-11L, complete set of three and the high value with double overprint, which is very scarce, full OG

150.00