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 4 sheets), NH, VF, C.v. $2,000, Est. $700-$800, Scott #C17-23