Reference numberMS/928/2/87
TitleLetter from Charles Édouard Guillaume, Bureau International des Poids & Mesures, Sevres, to Charles Vernon Boys
Date24 March 1899
DescriptionStates that they have not yet done anything to develop non-expandable alloys casting from a commercial point of view, Guillaume was fully engaged in their technical study, or on other matters. Therefore, they have not created any commercial relationship abroad, and the clock rods are directly from the Societe de Commentry-Fourchambault in Paris. Guillaume can give Boys the good news that the factory manufactures straight and polished rods and these are perfect for clocks. They have developed the manufacture of watch springs and he gives details of these.
Physical descriptionOn paper
Access statusOpen
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