Commercial Invoice on Company Letterhead
Cat. No. PRT-2025-015
Commercial invoice of the French instrument-making firm Dourde & Cie, specializing in aneroid barometers and meteorological instruments, completed on 4 March 1948 and addressed to the retail workshop EMARD in Poitiers; according to the document, components in the form of thermometers for the “C” model barometer were supplied for a total of 56 francs.
