Berger & Sons Builder's Transit

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This Convertible Transit Level is signed "C. L. BERGER AND SONS, INC. BOSTON, MASS. 62282 MADE IN U.S.A." Berger introduced this form in the early 1950s, describing it as a "modern, practical and sturdy instrument, precision engineered for the requirements of the contractor and builder." This example was owned by Charles H. Rutter, a contractor and builder in southern Prince George's County, Md. Its horizontal circle and vertical arc are divided to single degrees, and read by verniers to 5 minutes.
Ref: C. L. Berger & Sons, Inc., Solar Ephemeris and Polar Tables (Boston, 1954), p. 62.
Currently not on view
date made
C.L. Berger and Sons
place made
United States: Massachusetts, Boston
case: 40 cm x 17 cm x 29 cm; 15 3/4 in x 6 11/16 in x 11 7/16 in
overall in case: 15 in x 11 in x 6 3/8 in; 38.1 cm x 27.94 cm x 16.1925 cm
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accession number
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Data Source
National Museum of American History