- 1947-Apr-09 – 1947-May-26
Illustrated catalog for a Pasteur Exhibition at the Science Museum in South Kensington, England, April 9th through May 26th, 1947. Exhibition originally shown in Paris, France, with added contributions from the Wellcome…
Stamp depicts Boeing 707, chemical apparatus, and heavy oxygen isotopes.
Cachet depicts chemical apparatus used in the petroleum industry. Stamp depicts Paul Sabatier, "founder of catalytic chemistry."