#5, 1867 50c Yellow, partial sheet of 20 (5x4), positions 1 to 20, exhibiting the shade of the first impression, good margins all round, fine mint o.g., one minute thin spot as usually found, fine and scarce. (Image)

Est. $300-400

Zeppelin Acceptance, 1930 South America Flight, #C24-C26, 1.5b, 3b and 6b complete Zeppelin set of three on cover to Liverpool, with additional airmail franking, cancelled at La Paz on May 14, with "Correo Bolivia/1er. Serv. G.Z. 14-5-30" two-line handstamp and the rhomboid marking of the Flight, showing transit of Friedrichshafen on reverse, fine and rare. (Image)

Est. $750-1,000