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586 Chemistry/Chimie
Lot No Type Description Result
15884 EL image FRANCE (1957) Thenard. Crystals. Deluxe sheet. Scott No 864, Yvert No 1139.
AVAILABLE AT $35
15885 EP image GERMANY (1964) Benzene ring. Archive photo (See Note) (unaccepted) for centenary of discovery of benzene ring by Kekulé. Measures 90 x 120 mm. Scott No 892, Yvert No 310.
AVAILABLE AT $75
15886 SPE image GERMANY (1982) Urea molecule model. Specimen (overprinted MUSTER). Scott No 1379, Yvert No 981. Friedrich Wohler, discoverer of organic chemistry.
AVAILABLE AT $20
15887 EP image AUSTRIA (1995) Josef Loschmidt. Black proof. Loschmidt first determined the diameter of a molecule using the kinetic theory of gases. Scott No 1682, Yvert No 1992.
AVAILABLE AT $20

See Also Lots:/ Voir Aussi Lots:
Lot No Type Description Result
16646 EA image AFARS & ISSAS (1972b) Calmette. Guerin. Bacterial culture. Die proof in violet signed by the engraver QUILLIVIC. Scott No C71, Yvert No PA77.
AVAILABLE AT $140

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