1930, Airplane over Mountains and Vaduz Castle, 15rp-1fr, complete set of six, nicely centered, full OG, NH, VF, C.v. $518, SBK #F1-6, C.v. CHF750, Est. $150 -$200

150.00

1931, Zeppelin and Airship Hindenburg, 1fr and 2fr, two complete sets of two, nice centering and fresh colors, full OG, NH, VF, C.v. $725, SBK #F7-8, F14-15, C.v. CHF1,100, Est. $200-$250

200.00

1930 (May 18-31), South America Flight cover to NYC, franked by seven stamps including six Palace and Church of Vaduz 1 1/2fr blue (C.v. $660 as for stamps off cover), cancelled with Triesenberg"15.V.30"ds, red confirmation cachet, Lakehurst "MAY.31.1930" arrival marking, mostly VF and scarce franking, Sieger #57, C.v. €375 plus significant premium for franking, Est. $250-$300

250.00

1931 (August 29-31), 1st SAF postcard, franked by three stamps, including the high value (2fr) of the Royal couple and two air post adhesives (total C.v. $340), tied by Triesenberg "21.VIII.31" ds, Friedrichshafen connection, green confirmation cachet and Cape Verde "31.AGU.31" arrival marking, mostly VF and scarce high values franking, Sieger #124, Est. $200-$250

200.00

1931 (September 18-19), 2nd SAF cover, franked by four stamps, including vertical pair of the Royal couple 2fr and two air post values (total C.v. $375), tied by Triesenberg "14.IX.31" ds, Friedrichshafen connection and violet confirmation markings, Cape Verde "31.AGU.31" arrival markings on front and reverse, mostly VF and rare franking, Sieger #129, Est. $200-$250

200.00