Deborah Friedman Collection of Colombian Airmail; U.S. & Worldwide Stamps
November 7, 2007 and November 13-15, 2007
| Images | Description | Current Bid |
 | Lot #2475 MEXICO Provisional Issues - Sinaloa 1929 20c black, red and gray, center inverted, vertical pair with normal stamp, n.h., v.f., only five examples exist in tete-beche form, ** Catalog #2var | Price Realized $500.00 |
 | Lot #2476 MEXICO Provisional Issues - Sinaloa 1929 20c black, red and gray, center inverted, block of four, with double row of perforations at bottom, n.h., v.f., with 1995 MEPSI cert.  **Catalog #2var | Price Realized $575.00 |
