Stadia Hand Transit


This instrument is based on patent #975,682, granted to Philip Ferber in 1910 and assigned to Keuffel & Esser. According to the patent, Ferber intended "to combine in one readily portable instrument facilities for measuring distances, ascertaining vertical angles and slopes and taking compass bearings, the combined angle, grade and stadia readings being read simultaneously in the same field of view."

The instrument consists of an achromatic terrestrial telescope with cross and stadia hairs, and a circular box that serves as either a magnetic compass or a clinometer. Keuffel & Esser proclaimed that the Stadia hand Transit "gives more accurate results than any similar portable instruments, and gives them in less time," and they were still offering it in the 1930s. This example belonged to the University of Montana. The inscriptions read “KEUFFEL & ESSER Co NEW YORK" and "Pat. Nov. 15, 10.”

Ref: Keuffel & Esser, Catalogue (New York, 1913), p. 425.

Maker: Keuffel & Esser Co.

Location: Currently not on view

See more items in: Medicine and Science: Physical Sciences, Surveying and Geodesy, Measuring & Mapping


Exhibition Location:

Credit Line: University of Montana, School of Forestry, Montana Forest and Conservation Experiment Station

Data Source: National Museum of American History

Id Number: 1984.0636.07Catalog Number: 1984.0636.07Accession Number: 1984.0636

Object Name: stadia hand transit

Measurements: transit: 2 in x 3 1/4 in x 10 3/8 in; 5.08 cm x 8.255 cm x 26.3525 cmcase: 2 3/4 in x 6 in x 13 7/8 in; 6.985 cm x 15.24 cm x 35.2425 cmoverall in case with strap: 2 3/4 in x 7 1/4 in x 13 1/4 in; 6.985 cm x 18.415 cm x 33.655 cm


Record Id: nmah_997301

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