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586 Chemistry / Chimie Trial Color Proofs
Lot No Type Description Price
6792 ESS image FRANCE (1955) Chardonnet*. Microscope*. Trial color proof strip of 5. Invention of rayon. Scott No 762, Yvert No 1017.
AVAILABLE AT $80
SOLD
18564 ESS image RWANDA (1972) Chemist in laboratory. Set of 8 color separations. Scott No 492. Fight against racism..
AVAILABLE AT $75
18566 ESS image RWANDA (1975) Chemist in laboratory. Set of 6 color separations. Scott No 678. 10th anniversary of Rwanda National University.
AVAILABLE AT $75
24671 ESS image FRANCE (1951) Gay-Lussac*. Trial color proof. Scott No B260, Yvert No 893.
AVAILABLE AT $40

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