Lutz Graphometer

Description
This graphometer is one of several objects from the Bureau of Education that the U. S. Department of Interior transferred to the Smithsonian Institution in 1910. Active during the period 1876-1885, the Bureau of Education had organized exhibits for national and international exhibitions, and collected educational materials from around the world for display in its museum in Washington, D.C. The graphometer is of nickel-plated brass. Its semicircle arc is graduated every 30 minutes, and read by vernier scales at either end of the alidade to single minutes. The "Ed LUTZ Paris" signature refers to Edouard Lutz, who worked in Paris in the second half of the 19th century, specializing in optical instruments.
Location
Currently not on view
maker
Lutz, Edouard
place made
France: Île-de-France, Paris
Measurements
overall: 8 1/2 in; 21.59 cm
needle: 1 3/4 in; 4.445 cm
overall: 8 7/8 in x 8 1/2 in x 5 1/2 in; 22.5425 cm x 21.59 cm x 13.97 cm
ID Number
PH.261271
accession number
51116
catalog number
261271
Credit Line
The Dept. of Interior
See more items in
Medicine and Science: Physical Sciences
Measuring & Mapping
Surveying and Geodesy
Data Source
National Museum of American History, Kenneth E. Behring Center

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