30-31, 33, 65, 108, 1956/65 Issues, Artist's proofs, 30-31 in rose, 33 and 65 in brown, 108 in blue, each signed, 65 and 108 with official embossed seal, all but 108 with deckled edges, very fine (Image)

CV.

129-32, 1966 Folklore, Artist's proofs, 10k in black, others in brown, each signed by the engraver and with official embossed seal, 30k slightly reduced, very fine and scarce (Image)

CV.

152-55, 1967 Blossoms, Artist's proofs, 55k in brown, others in violet, each with engraver's signature and official embossed seal, very fine and choice (Image)

CV.

168-70, 1968 Laotian Army, Artist's proofs, 15k orange, 20k blue, 60k green, each signed and with official embossed seal, very fine (Image)

CV.

174-77, 1968 Fruits, Artist's proofs, 20k in violet, 50k, 180k in green, 250k in brown, each with signature and official embossed seal, very fine (Image)

CV.

194-95, 207-08, 1969 King's Death Centenary, 1971 Nakhanet, Artist's proofs, 194 in brown 195 in green, 207 in pink, 208 in brown, each signed and with official embossed seal, very fine (Image)

CV.

201-02, C69, 1970 Expo '70, Artist's proofs, 202 in blue, others in green, each signed and with official embossed seal, very fine (Image)

CV.

214-15, 256-57, 1971 Rotary International, 1975 Sapphire Panning, Artist's proofs, 214 in brown, 215 in black, 256-57 in blue, each signed and with official embossed seal, very fine (Image)

CV.

C35-38, 1960 National Tourism Industry, Artist's proofs, 9.50k in blue, 15k in black, others in brown, each with signature and official embossed seal, very fine (Image)

CV.

C48, C68, C71, 1965/70 Airmails, Artist's proofs, C48 in pink, C68 in orange (small discoloration on back not showing through), C71 in green, each signed and with official embossed seal, very fine (Image)

CV.

C54-55, 1968 Insects, Artist's proofs, 120k in yellow orange, 160k in bright green, each signed and with official embossed seal, very fine (Image)

CV.

C58, 1969 Timber Industry, Artist's proof, two proofs in black or green, each signed and with official embossed seal, very fine (Image)

CV.