COMOROS (1956) Village well pump*. Trial color proofs in strip of 5. FIDES issue. Scott No 43, Yvert No 14.
AVAILABLE AT $50
UNITED NATIONS (1971) Trawler*. Fish*. Sea-bed*. Set of 6 imperforate progressive proof pairs. Scott No 215, Yvert No 208. Peaceful Uses of the Sea Bed. From the UN printer archives. Rare!
AVAILABLE AT $100
MAURITANIA (1960) Pastoral well*. Trial color proof in reddish-violet. Scott No 120, Yvert No 140. Not easy to find!
AVAILABLE AT $20
NIGER (1966) Water cycle*. Globe*. Scott No 167. Yvert No 173. Hydrological Decade. COMPLETE SHEET OF 25 TRIAL COLOR PLATE PROOFS with color codes in the margin. **. Only 13 complete sheets printed therefore probably the only sheet still intact as most are cut for strips or singles.
AVAILABLE AT $300
IVORY COAST (1972) Jacqueville Lake*. Palm trees*. Trial color plate proofs in strip of 5 with multicolor. Scott No C52, Yvert No PA58. Not easy to find!
AVAILABLE AT $75
SOLD
GUINEA (1966) Water cycle*. UNESCO emblem*. Set of 5 trial color proofs of the 25 Fr value, in colors different from the final stamp. All but one have the UNESCO emblem and orange dot, but the last has it in green! Symbolic watercycle, issue was for the Decade of International Hydrology. Scott No 434, Yvert No 285. Scarce!
AVAILABLE AT $50
GUINEA (1966) Water cycle*. UNESCO emblem*. Trial color proof pair. Symbolic water cycle, issue was for the Decade of International Hydrology. Scott Nos 434, Yvert No 285.
AVAILABLE AT $15
FRANCE (1957) Sens River, Guadeloupe*. Trial color proof pair. Scott No 850, Yvert No 1125.
AVAILABLE AT $20
FRANCE (1957) Evian-Les-Bains*. Trial color proof corner pair. Famous for its mineral waters. Scott No 856, Yvert No 1131.
AVAILABLE AT $25
MONACO (1971) Theodolite*. Underwater scene*. Trial color proofs in strip of 5. International Hydrographical Bureau. Scott No 804, Yvert No 861.
AVAILABLE AT $100
MONACO (1971) Theodolite*. Underwater scene*. Trial color proofs pair. International Hydrographical Bureau. Scott No 804, Yvert No 861.
AVAILABLE AT $40
FEZZAN (1949) Well at Gorda*. Trial color die proof in blue with color code in margin. Scott No 2N6, Yvert No 50. Only 3 issued in this color!
AVAILABLE AT $80
FEZZAN (1950) Brak oasis*. Trial color die proof in greenish-black with color code in margin. Scott No 2NJ5. Only 3 issued in this color!
AVAILABLE AT $80