Pamphlet, Pantographe Perfectonne par L. Blondeau
date: label: date made
content: ca 1850
notes: label: Description
content: 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.
label: Description
content: For a related instrument, see MA.314869.
label: Location
content: Currently not on view
place: label: place made
content: France: Île-de-France, Paris
topic: label: Subject
content: Mathematics
setName: label: See more items in
content: Medicine and Science: Mathematics
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content: Pantographs
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content: Science & Mathematics
creditLine: label: Credit Line
content: Transfer from Smithsonian Institution Astrophysical Observatory
dataSource: label: Data Source
content: National Museum of American History
identifier: label: ID Number
content: MA.211531.02
label: accession number
content: 211531
label: catalog number
content: 211531.02
objectType: label: Object Name
content: Pamphlet
physicalDescription: label: Physical Description
content: paper (overall material)
label: Measurements
content: overall: .1 cm x 13.5 cm x 20.8 cm; 1/32 in x 5 5/16 in x 8 3/16 in