Recording Thermometer

Recording Thermometer

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This is the transmitting apparatus, incomplete, of a telethermograph. The inscription on the case reads “Télé-thermographe Breveté S.G.D.G. Jules Richard Constructeur Paris.” That on the instrument reads “Richard Frères constructeurs breveté Paris.” Felix Richard began in business in Paris in 1845, making metallic (aneroid) barometers. The firm became Societé Richard Freres in 1882; and later "Jules Richard, Sucessor, Paris.”
Ref: W. E. K. Middleton, Catalog of Meteorological Instruments in the National Museum of History and Technology (Washington, D.C., 1969), pp. 56-57.
Currently not on view
Object Name
Recording Thermometer
Richard Freres
place made
France: Île-de-France, Paris
overall: 10 5/8 in x 14 1/4 in x 10 3/8 in; 26.9875 cm x 36.195 cm x 26.3525 cm
ID Number
catalog number
accession number
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Medicine and Science: Physical Sciences
Data Source
National Museum of American History
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