U.S. and Worldwide Stamps & Postal History
March 17-18, 2015
| Images | Description | Current Bid |
 | Lot #1225 RUSSIA Air Post 1933 Stratosphere Balloon, 5k indigo blue, ultramarine, dark brown, three different imperforate and gummed trial color proofs on watermarked stamp paper, h.r. or l.h., v.f., last one signed Mikulski. A rare group * Catalog #C37P | Price Realized $14,000.00 |
