1950 Fifth World Congress of the Junior Chamber of Commerce, 30c and 50c imperf. plate proofs on card, vertical gutter blocks of four, creases between stamps, otherwise v.f. (Cat No. C68-69P) (Image)

Est.US$250

1947 3c-10c numerals, imperf. plate proofs on card, upper right sheet corner margin blocks of four, v.f. (Cat No. J23-26P) (Image)

Est.US$500

1946 Large master die proof in green, die sunk on card, v.f. (Image)

Est.US$250

1947 Documentary Revenue Tax, 2c-100p, set of 15 different large die proofs, die sunk on full cards, fresh, v.f. (Image)

Est.US$2,500

1947 Internal Revenue Documentary Tax Stamps, 2c, 5c, 10c and 20c, large die proofs, card mounted and signed by John Hay (the designer), fine-v.f. (Image)

Est.US$300

1950 Internal Revenue Stamps, 50 pesos red brown, 200 pesos green and 20,000 pesos black, large die proofs, each die sunk on card, v.f. (Image)

Est.US$500

1950 Internal Revenue Stamps, "centavos" and "Pesos" master die proofs in green, each showing a different design, value tablets blank, die on card, v.f. (Image)

Est.US$500

1960 Cigarette Tax, collection of 284 perf. or imperf. stamps, many in blocks of four or larger, proofs, Specimen overprints, varieties, etc., generally fine or better (Image)

Est.US$750