U.S. & Worldwide; The Alexander Collection of Russia
September 14-16, 2010
| Images | Description | Current Bid |
 | Lot #1507 SWITZERLAND Air Post 1920 30c Propeller overprint, used with additional franking on registered and flown cover from Bern 8.12.20 (Basel-Frankfurt line) to Tonder (Denmark), also 1919 50c green, used on flown cover 17.6.19 (Dubendorf-Bern-Lausanne line), v.f., each with appropriate arrival pmk, signed, with 1975 Alberto Diena cert. (Zu.1-2)  Catalog #C1-2 Catalog Value SFr 6,000 | Price Realized $1,500.00 |
 | Lot #1508 SWITZERLAND Air Post 1932 (2.5) first flight cover Berlin-Manchouli-Shanghai, via Basel and Amsterdam, appropriate markings, rare | Price Realized $230.00 |
 | Lot #1509 SWITZERLAND Air Post 1935 10c on 15c deep green and light green, surcharge inverted, h.r., minor natural paper flaws, otherwise v.f., signed Muller-Basel, with 1988 Hunziker cert., * Catalog #C20a Catalog Value $6,500 | Price Realized $2,100.00 |
