U.S. and Worldwide Stamps & Postal History
September 20-21, 2016
| Images | Description | Current Bid |
 | Lot #131 COLOMBIA Air Post 1919 First Experimental Air Mail Flight, Barranquilla to Puerto Colombia to Barranquilla by American aviator William Knox Martin, June 18, 1919. On this occasion, 200 copies of 2centavos stamps were overprinted at Barranquilla Printing Office. This was executed in horizontal strips of ten, which were severed with a guillotine knife, causing horizontal perforations to have a "cut" appearance. Of the total stamps issued, 160 were used on covers on the special flight. An unused single, with dried gum as often, separated by knife at top, small gum soak at bottom, otherwise fine, pencil signed (YT PA1, Euro 5,000) * Catalog #C1 Catalog Value $3,500 | Unsold |
 | Lot #132 COLOMBIA Air Post 1920 Woman & Boy Watching, 10c multicolored, unused without gum as issued, n.h., v.f., signed Herbert Block, with 1957 Friedl certificate. A beautiful stamp, perfect condition, (*) Catalog #C2 Catalog Value $3,000 | Price Realized $1,600.00 |
 | Lot #133 COLOMBIA Air Post 1920 Tilted Plane, 10c multicolored, unused without gum as issued, l.h., v.f., with 1969 Philatelic Foundation certificate, (*) Catalog #C4 Catalog Value $4,600 | Price Realized $2,600.00 |
 | Lot #134 COLOMBIA Air Post 1920 Flier in Plane, 10c multicolored, unused without gum as issued, h.r., v.f., signed Herbert Bloch, with 1957 Friedl certificate, (*) Catalog #C5 Catalog Value $3,500 | Price Realized $1,600.00 |
 | Lot #135 COLOMBIA Air Post 1920 Lighthouse, 10c multicolored, unused without gum as issued, l.h., v.f., with 1969 Philatelic Foundation Certificate, (*) Catalog #C6 Catalog Value $3,000 | Price Realized $1,800.00 |
 | Lot #136 COLOMBIA Air Post 1920 Plane at Rest, 10c multicolored, unused without gum as issued, l.h., v.f., with 1969 Philatelic Foundation Certificate, (*) Catalog #C9 Catalog Value $3,500 | Price Realized $1,600.00 |
 | Lot #137 COLOMBIA Air Post 1921 Valor 10 Centavos, surcharge in blue on 50c green, n.h., usual perforations, fresh and fine stamp, seldom offered in this exceptional quality, signed Champion, ** Catalog #C17 Catalog Value $1,250 | Price Realized $750.00 |
 | Lot #138 COLOMBIA Air Post 1922 Provisional Handstamped surcharges "30 Cent" in violet on 10c yellow, unused with full original gum, l.h., fine, signed Champion, Herbert Bloch. This rare provisional surcharge was issued in Bogota on May 5, 1922, due to a sudden shortage of the 30c value. The original stamp was already demonetized and while 200 surcharged provisionals were issued, only a few mint copies were sold (YT PA26) * Catalog #C37 Catalog Value $850 | Unsold |
