UNITED NATIONS (1972) Conference on Human Environment. Set of 2 imperforate pairs. Scott Nos 229-30, Yvert Nos 222-3. From the UN printer archives. Rare!
AVAILABLE AT $120
UNITED NATIONS (1976) Conference on Human Settlements. Set of 12 imperforate progressive proofs. Scott No 277, Yvert No 268. From the UN printer archives. Rare!
AVAILABLE AT $100
UNITED NATIONS (1982) Hands holding seedling. Set of 8 imperforate progressive proof pairs. Scott No 371, Yvert No 362. From the UN printer archives. Rare!
AVAILABLE AT $100
UNITED NATIONS (1982) Leaf. Imperforate corner block of 4. Scott No 380, Yvert No 381. Environmental Protection. From the UN printer archives. Rare!
AVAILABLE AT $120
UNITED NATIONS (1982) Butterfly. Imperforate corner block of 4. Scott No 381, Yvert No 382. Environmental Protection. From the UN printer archives. Rare!
SOLD
UNITED NATIONS (1984) International Conference on Population. Imperforate pair. Scott No 417, Yvert Nos 408. From the UN printer archives. Rare!
AVAILABLE AT $60
BENIN (1986) Trees. Imperforate pair. Scott No 620. Fight against desertification.
AVAILABLE AT $10
CONGO (1986) Garbage disposal. Set of 2 imperforate blocks of 4. Scott Nos 752-3. Environment Day.
AVAILABLE AT $40
FRANCE (2010) Waves. Stage die proof in black signed by the engraver BEAUJARD. Scott No 3780. Yvert No 4439. The value is missing.
AVAILABLE AT $175
MONACO (1986) RAMOGE ship. Microscope. Microscopic sea creatures. Underwater preserve. Set of 2 imperforate blocks of 4. Scott Nos 1530-1, Yvert Nos 1520-1.
GAMBIA (1997) Paul Harris. Preserve Planet Earth logo. Planting friendship tree. Imperforate proof of stamp and S/S mounted in House of Questa folder. Scott Nos 1915-6. Only a few exist.