U.S. & Worldwide; The Alexander Collection of Russia
September 14-16, 2010
| Images | Description | Current Bid |
 | Lot #257 BULGARIA Air Post 1987 Balkan Airfleet, 25s error, missing the entire engraved portion, including name of the country and inscriptions, cancelled to order, with regular stamp included for comparison, v.f. error from the original discovery (one sheet of 25) O Catalog #C161var | Unsold |
 | Lot #258 BULGARIA Air Post 1987 Balkan Airfleet, 25s error, missing the entire engraved portion, including name of the country and inscriptions, upper sheet corner margin block of four, cancelled to order, with regular stamps included for comparison, v.f. error from the original discovery (one sheet of 25)  Catalog #C161var | Unsold |
