Worldwide Stamps and Covers

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) -
Cat. Val. $3,500