1974 Cambodia, Nicholas Copernicus Issue, complete set of nine, six different colors of each value for a total of 54 (!) different artist die proofs, also 18 composite die proofs of three, various colors, each with printer's embossing at lower left corner, v.f. and colorful group of die proofs from Cambodia (Cat No. 324-330,C46-47P)

Est.$2,500

1975 Cambodia, UPU and Olympics, selection of 180 artist die proofs, six different colors of each value, also 54 composite die proofs of three, various colors, each with printer's embossing at lower left corner, v.f. and colorful group of die proofs from Cambodia (Cat No. 333/367P)

Est.$7,500

1975 Laos, UPU, Space, United States Presidents, etc., selection of 96 artist die proofs, six different colors of each value, also 30 different composite die proofs of three or four, various colors, each with printer's embossing at lower left corner, v.f. and colorful group of die proofs from Laos (Cat No. 266/269I/P)

Est.$5,000

1960s-80s Mostly Space, selection of perf. and imperf. singles, sets, blocks, trial color proofs from the former French Colonies, also Dubai, including errors and varieties, inverted overprints, Germany "Muster" overprint, Panama, signed artist die proofs from France (Scott 1485P, two different, also 1500P), Polynesia (Scott C33,C41), Comores (C16, two different), Mauritania (C25 printer's inspection die proof in sepia), Monaco 10fr trial color imperf. strip of five (C62), stage proofs of Equatorial Guinea, etc., v.f. and interesting lot

Est.$750