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Title: Expedition Alidade with Case

Description: The rectangular base (blade) features two different types of spirit levels and a trough compass. Manufactured by W. & L.E. Gurley, Troy, New York. Object ID: USGS-000328

Location: USA

Photographer: USGS Museum Staff , U.S. Geological Survey

Usage: This image is public domain/of free use unless otherwise stated. Please refer to the USGS Copyright section for how to credit the photo.

Source:

USGS Museum Collection

File Details:
Type: JPEG image - 120.83 KB
Dimensions: 1503 x 969
Resolution: 72 dpi

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Tags: Alidade Expedition USGS-000328