U.S. and Worldwide Stamps & Postal History
February 28-March 1, 2017
Images | Description | Current Bid |
| Lot #1218 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 (Zverev $18,000) * Catalog #C37P | Price Realized $9,500.00
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