1942 Timbre Nacional, 1c-$20, complete set of 15 large die proofs, also two master dies (value tablets blank) each die sunk on full card from the American Bank Note Company, v.f., undoubtedly rare (Image)

Est.$1,500

1956 Passport stamp, Security Bank Note Co. production file, with original drawings, photo proofs for submission to the Colombian government, lettering, actual passport samples, plus relevant correspondence (Image)

Est.$250