U.S. and Worldwide Stamps; South America; Russia
January 13-14, 2010
| Images | Description | Current Bid |
 | Lot #2428 MEXICO Air Post 1936 20c lake, "Eagleman" watermarked "Secretaria de Hacienda Mexico" and lines, bottom sheet margin block of four, n.h., v.f., signed Herbert Bloch, with 1971 Friedl Certificate. This is the only existing block of this elusive watermark issue, certainly the major air post rarity from Mexico, ex-Weston collection (realized $60,500 in the 1980 Sotheby's-Parke-Bennet auction)  **Catalog #C76A | Unsold |
