Booklets of the World; U.S. and Worldwide; Russia
April 6-7, 2011 and April 11-12, 2011
| Images | Description | Current Bid |
 | Lot #3396 RUSSIA - AIR POST Air Post 1934 10k ultramarine (Vasenko) imperforate trial color proof on watermarked and gummed paper, natural gum creases, otherwise v.f., signed Mikulski P Catalog #C51P | Price Realized $4,750.00 |
