1935 National Olympic Games in Barranquilla, complete set, small h.r., fresh, fine-v.f., top values with Robineau certificate, cat. $1225 (Cat No. 421-36) (Image)

Cat. $1225, Est.$500

1920 10c Tilted plane viewed close-up from above, unused without gum as issued, h.r., large margins and bright colors and fresh, minute thin spot as often, still v.f. Only 31 unused examples recorded, cat. $4500 (Cat No. C4) (Image)

Cat. $4500, Est.$2,000

1920 10c Lighthouse, unused without gum as issued, h.r., large margins all around, rich colors, tiny toned speck on back of left margin, fresh and v.f. stamp. Only 50 unused examples have been recorded, cat. $4500 (Cat No. C6) (Image)

Cat. $4500, Est.$3,000

1920 10c Ocean Liner, used in combination with 3c National stamp on small cover from Cartagena (22 February 1920) to Barranquilla, v.f., with arrival pmk on back, signed Kessler, cat. $2000 (Cat No. C10) (Image)

Cat. $2000, Est.$1,500

1930 (24 Feb) flown cover from Cali, via Cristobal (Canal Zone) and Panama to Buenos Aires, attractively franked with Colombian stamps used in combination with Canal Zone 20c surcharge, with transit and arrival pmks (Image)

Est.$250