Booklets of the World; U.S. and Worldwide; Russia
April 6-7, 2011 and April 11-12, 2011
| Images | Description | Current Bid |
 | Lot #3337 SOVIET UNION 1966-70 Issues 1967 KGB, 4k block of six, silver omitted from the two middle stamps, n.h., v.f. (Liapine 3513 P1)  **Catalog #3404var Catalog Value €400 | Unsold |
