Deborah Friedman Collection of Colombian Airmail; U.S. & Worldwide Stamps
November 7, 2007 and November 13-15, 2007
| Images | Description | Current Bid |
 | Lot #3073 SWITZERLAND Air Post 1924 Scadta cover from Le Chaux de Fonds to Bogota, franked with overprinted "S" 30c (3), used in combination with 80c Wilhelm Tell, backstamped in Bogota on arrival, filing fold away from the stamps, scarce  | Unsold |
 | Lot #3074 SWITZERLAND Air Post 1925 cover from Basel to USA, franked with 1fr violet and on arrival in San Francisco a 24c Jenny was added and canc. by oval "San Francisco Ferry" pmk, apparently paying for the second leg of the flight from New York, fine and scarce | Price Realized $450.00 |
 | Lot #3075 SWITZERLAND Air Post 1935 surcharged 40c on 90c, vermilion surcharge, used in combination with additional franking on registered 1937 Zeppelin flight to Brazil, Bern 12.4.37 departure, Frankfurt connecting cachet and Rio de Janeiro arrival pmk on back, v.f. and rare cover, signed Bloch, with 1978 Friedl cert. (Mi.293a) Catalog #C25a Catalog Value € 1,700 | Unsold |
 | Lot #3076 SWITZERLAND Air Post 1937 20c green, imperforate, sheet margin single, l.h., v.f., with 1977 Rellstab cert. (Mi.213zu) * Catalog Value € 4,000 | Price Realized $2,300.00 |
