Ivanov Collection of Russia; Matuzas Collection Of Lithuania; U.S. & Worldwide
September 7-8, 2011 and September 13-15, 2011
| Images | Description | Current Bid |
 | Lot #5033 RSFSR 1921 First Definitives 1921 20r ultramarine, proof on marbleized, gummed paper (possibly printer's waste), also used single, privately perf. 11 1/2 (Moscow), fine and very rare PO Catalog #6P | Unsold |
