CAMEROUN (1972) Chemical lab apparatus. Imperforate corner block of 4. President Ahidjo Prize. Scott No 545, Yvert No 525.
AVAILABLE AT $20
FRANCE (1986) Moissan. Chemical formula. Laboratory glassware. Deluxe sheet. Moissan discovered many of the properties of fluorine compounds. He was also the first to produce artificial diamonds. Scott No B576, Yvert No 2397.Interesting!
AVAILABLE AT $15
FRANCE (1986) Heroult. Aluminum. Deluxe sheet. Heroult, along with Hall, discovered the process for refining aluminum. Scott No B579, Yvert No 2400.
AVAILABLE AT $15
NEW CALEDONIA (1993) Distillation of attar from Niaouli flowers. Deluxe sheet. Scott No C243, Yvert No PA297.
AVAILABLE AT $15
FRANCE (2005) Henri Moissan. Stage die proof in sepia signed by the engraver BEAUJARD. Scott No 3257, Yvert No 3915. Winner of Nobel Prize for his work with fluorine.
AVAILABLE AT $175
FRENCH MOROCCO (1947) Tanker car of phosphates. Symbols of plenty. Partial map of Morocco. Deluxe sheet. Scott No B33. Yvert No 265. 25th anniversay of phosphate exploitation.
FRANCE (1975) Atom diagram* and waves. Meter Convention Document. Scott No 1435. Yvert No 1844. Centenary of International Meter Convention. Deluxe Sheet.
RUSSIA (1930) Worker with sledgehammer and machine. Biplanes in sky. Postal card (O) with illustrated advertising "Join the ranks of the Osoaviakhima!" (Society for the assistance to defense, aviation and chemical construction of the USSR).
U.S.A. (1880) Crystal blueing. Postal card (O) with bicolor illustrated ad on back for Sawyer's Crystal Blue, advising reader to beware of counterfeits. Small stain in lower right corner.
RUSSIA (1982) Quill pen. Lyre. Flask. Illustrated entire (N) promoting educational lectures.
SWITZERLAND (1946) Sailing vessel. Chemical and Botanical Products. Red meter cancellation on cover Meter No 3172: "Importers of chemical products from all countries."