Bidspirit auction | Worldwide Air Post Stamps and

Worldwide Air Post Stamps and Postal History - Liechtenstein - 1939, Birds, 10rp-2fr, complete set of seven in sheets of 50 (5x10), full OG with just a few occasional yellowish spots (2-3 stamps affected in a couple sheets), NH, VF, C.v. $2,000 as singles, SBK #F17-23, C.v. CHF3,500++, Est. $600-$700, Scott #C17-23