1920 10c Ocean Liner, tied by violet "Compania Colombiana de Navegacion Aerea Agencia de Cartagena" oval, used on cover from Cartagena (22 Feb) to Barranquilla, additional departure pmk alongside, v.f. and unusual franking without the customary government adhesive, with 23 February arrival pmk on back, signed Diena, with his 1960 certificate, cat. $2000 (Cat No. C10) (Image)

Cat. $2000, Est.$1,000

1960 Abraham Lincoln, 60c value, seven imperforate blocks of four, bicolor trials on ungummed stamp paper, including center vignette only in black, v.f. (Cat No. C376P) (Image)

Est.$500