Air Post stamps 1930, Zeppelin issue, complete proof pane of 25 "CORREO AEREO. R.S. 6-V-1930" overprints in brown, printed on thin paper, representing all existing plate varieties, several folds did not detract, VFand extremely rare piece, expertized by C. Beltran and Matthew, Est. $1,000-$1,500

750.00

1930, Zeppelin issue, surcharge or overprints on Aviation School stamps in various colors, set of six (without No.C13 and C17), nice quality, full OG, NH, mainly VF, C.v. $450 as hinged, Est. $200-$300

150.00

1930, Zeppelin issue, double blue overprint on 10c vermilion and black, full OG, previously hinged, F/VF, C.v. $175, Est. $100-$150

75.00

1930, Zeppelin issue, inverted red overprint on Aviation School stamp of 25c blue and black, bottom sheet margin block of four, full OG, NH or LH (top stamps), VF and scarce multiple, C.v. $600 as hinged singles, Est. $400- $500

250.00

1930, Zeppelin issue, double red overprint on 25c dark blue and black, full OG, previously hinged, fine and very scarce, only 25 stamps have double red overprint on this denomination, guarantee hs on reverse, C.v. $550, Est. $250-$400

200.00

1930, Zeppelin issue, inverted brown overprint on Aviation School stamp of 50c orange and black, full OG, LH, VF, Champion guarantee hs, C.v. $225, Est. $150-$200

100.00

1930, Zeppelin issue, surcharge 5c/10c and overprints with bronze powder on 10c-1b, complete set of five, nicely centered, full OG or unused, no gum (15c), VF and scarce, C.v. $1,120, Est. $500-$600

300.00

1930, Zeppelin issue, green with bronze powder surcharge 5c on Aviation School stamp of 10c vermilion and black, block of four, full OG, NH or LH (top stamps), VF and scarce multiple, only 300 were printed, bottom leftstamp has tiny expert's pencil sign, C.v. $480 as hinged singles, Est. $300-$400

200.00

1930, Zeppelin issue, inverted green with bronze powder surcharge 5c on Aviation School stamp of 10c vermilion and black, full OG, previously hinged, F/VF and very scarce, only 50 stamps were produced with invertedsurcharge, C.v. $200, Est. $150-$200

100.00

1930, Zeppelin issue, inverted blue with bronze powder overprint on Aviation School stamp of 10c vermilion and black, full OG, LH, VF and rare, only 50 stamps were produced, expert's hs on reverse, C.v. $200, Est. $150- $200

100.00

1930, Zeppelin issue, double violet with bronze powder overprint on 15c carmine and black, full OG, previously hinged, F/VF and rare, only a handful was produced, guarantee mark on reverse, this stamp is not listed in Scott, Est. $300-$400

200.00

1930, Zeppelin issue, inverted copper overprint on 25c dark blue and black, full OG, barely trace of hinge, VF and rare, only 50 stamps with inverted copper overprint were printed, Est. $150-$200

100.00

Zeppelin First Europe-Pan America Flight 1930 (May 24- June 6), two pages from a Collection, containing two covers and two postcards, each item franked by two Zeppelin stamps, placed on board at Recife anddelivered to Lakehurst (1) or Friedrichshafen, violet American and two different types of Bolivian confirmation cachet, appropriate arrival markings, covers are somewhat ageing, postcards - VF, Est. $500-$600

300.00