File:Frank C. Calkins (1901).jpg

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Summary

Description
English: Frank C. Calkins, U.S. Geological Survey
Date (published online 2003)
Source The USGS in the Early 1900s – Reminiscences of D. Foster Hewett, Adolph Knoph, and Frank C. Calkins. U.S. Geological Survey: Open-File Report 97-267
Author U.S. Geological Survey

Licensing

Public domain
This image is in the public domain in the United States because it only contains materials that originally came from the United States Geological Survey, an agency of the United States Department of the Interior. For more information, see the official USGS copyright policy.

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Frank C. Calkins, U.S. Geological Survey

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Date/TimeThumbnailDimensionsUserComment
current21:09, 9 June 2024Thumbnail for version as of 21:09, 9 June 2024683 × 1,024 (69 KB)BhamBoiUploaded a work by U.S. Geological Survey from [https://pubs.usgs.gov/of/1997/0267/ The USGS in the Early 1900s – Reminiscences of D. Foster Hewett, Adolph Knoph, and Frank C. Calkins]. U.S. Geological Survey: Open-File Report 97-267 with UploadWizard
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