Berger & Sons Builder's Transit

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
Object Name
builder's transit
date made
C.L. Berger and Sons
case: 40 cm x 17 cm x 29 cm; 15 3/4 in x 6 11/16 in x 11 7/16 in
place made
United States: Massachusetts, Boston
ID Number
accession number
catalog number
Measuring & Mapping
Surveying and Geodesy
See more items in
Medicine and Science: Physical Sciences
Surveying and Geodesy
Data Source
National Museum of American History, Kenneth E. Behring Center

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