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Physical Sciences Collection - Surveying and Geodesy

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Dumpy Level - click to enlarge

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Dumpy Level

Catalogue number:
1982.0671.14

Inscriptions:
"C. L. Berger & Sons. Boston USA 17475"

Dimensions:
telescope 9.25 inches long

Discussion:

C. L. Berger & Sons described this as an Engineers' Tilting Dumpy Level Model No. 10-X, noting that it was a "Wartime Development to simplify and expedite Peacetime Engineering Procedure." It was speedy, accurate, simplified, and streamlined, and could be used at night. This example belonged to the United States Geological Survey. It has an ivory finish, and the case is olive drab. The ML in the serial number may indicate that it was made for military use.

Ref: C. L. Berger & Sons, Inc., A Berger Instrument of Precision for Engineering and Surveying (Boston, 1945).

Further Information:

Level
Berger

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