U.S. & Worldwide; The Alexander Collection of Russia
September 14-16, 2010
| Images | Description | Current Bid |
 | Lot #339 COLOMBIA Air Post 1932 Correo Aereo, 1p blue, imperf. sheet margin block of four, few toned spots, hinged in margin, v.f., signed. Only 25 printed, possibly the only imperf. block of four extant  *Catalog #San.135a | Price Realized $900.00 |
