Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Austria - 1925-30, Pilot, Crane and Airplane, 2g-10s, imperforated complete set of 20 in horizontal pairs, full OG, LH (all Pilot stamps) or no gum as issued, NH, all are VF, ANK #468U-87U, €5,000 as singles, Est. $1,200-$1,500 , Sc. #C12-31 imp