U.S. and Worldwide; The "Aurora" Collection of R.S.F.S.R.
February 8-10, 2011
| Images | Description | Current Bid |
 | Lot #1174 RUSSIA 1917 7r dark green and pink imperforate, center inverted, oval Buzdyak (??????) cancel, very fine, one of only three known copies (all cancelled "Buzdyak "). A key Russian rarity O Catalog #134a | Unsold |
