Proof 1940 (c.) American Bank Note Company multicoloured progressive die proofs, with booklets with four and five sheets, "Latin America", red, yellow, blue, brown and altogether (2), "Colombia", red, green, brown, mauve and altogether, "Colombian Flag", red, yellow, blue and altogether (2), "Flags", red, yellow, blue and silver (on one sheet), three sets on India, four on white, also design in red and blue with red cross (possibly for overprinting), 30 copies on cream, white and laid paper, also three sets similar to the above. Fine.