U.S. and Worldwide Stamps
June 9-10, 2010
| Images | Description | Current Bid |
 | Lot #217 COLOMBIAN STATES Bolivar 1879-1880 20c carmine, imperforate vertical gutter block of four, top stamps dated "1879", bottom "1880", se-tenant proofs on gummed paper, folded horizontally between stamps, fine, with Brian Moorhouse cert. "se-tenant 1879-1880 dated plate proofs of these issues have not been previously recorded"  PCatalog #13,21P | Unsold |
