U.S. and Worldwide Stamps & Postal History
February 28-March 1, 2017
| Images | Description | Current Bid |
 | Lot #231 COLOMBIA Air Post 1919 Barranquilla overprint, used June 18 on a "Tabletas Bayer Aspirin" advertising picture postcard with pre-printed "Bi-Plano C-1324" and "W.Knox Martin" (pilot) inscriptions in red, picture side with a special Inaugural Air Service handstamp, card unfortunately defective and strengthened with tape, also bearing a special 1932 Ministry of Post cachet, stamp v.f., extremely rare on card (most were affixed on covers) signed Kessler, Oriol, Calves, etc. (catalogue value for used stamp),  Catalog #C1 Catalog Value $1,700 | Price Realized $950.00 |
 | Lot #232 COLOMBIA Air Post 1920 10c Lighthouse, unused without gum as issued, full margins all around, few light wrinkles, otherwise v.f., (*) Catalog #C6 Catalog Value $3,000 | Price Realized $1,400.00 |
 | Lot #233 COLOMBIA Air Post 1921 (10 Nov) flown cover from Medellin to Bogota, franked with 30c on 50c surcharge (uncanceled), along with regular franking, boxed Medellin datestamps, v.f., with Bogota arrival postmark Catalog #C20 | Price Realized $450.00 |
 | Lot #234 COLOMBIA Air Post 1921 Handstamped in black "Valor 30 Centavos" on 50c green, surcharge inverted, right margin block of four, surcharge double on lower left stamp, few slight gum adhesions, some gum toning and right stamps creased, otherwise fine and very rare, signed Bloch (catalogue value for regular stamps)  *Catalog #C20var Catalog Value $3,700 | Price Realized $1,800.00 |
