Pamphlet, Pantographe Perfectonne par L. Blondeau

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Description
This pamphlet describes and illustrates the operation of a pantograph designed by L. Blondeau, a geographical draftsman employed by the Bureau des Cartes et Plans of the French Ministry of War. According to the instructions, the instrument was manufactured by Molteni & Cie., opticians and manufacturers, which had the address 13 Boulevard St. Denis in Paris. L. Blondeau took out his French patent for a pantograph in 1841, the same year that the firm Molteni & Cie. was established. Molteni & Cie. was at the address 13 Boulevard Saint-Denis in 1844, but by 1854 had moved to another address. This dates the instructions to the period 1841-1853.
For a related instrument, see MA.314869.
Location
Currently not on view
date made
ca 1850
place made
France: Île-de-France, Paris
Physical Description
paper (overall material)
Measurements
overall: .1 cm x 13.5 cm x 20.8 cm; 1/32 in x 5 5/16 in x 8 3/16 in
ID Number
MA.211531.02
accession number
211531
catalog number
211531.02
Credit Line
Transfer from Smithsonian Institution Astrophysical Observatory
subject
Mathematics
See more items in
Medicine and Science: Mathematics
Science & Mathematics
Pantographs
Data Source
National Museum of American History, Kenneth E. Behring Center

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