Arkivism
Washington, D.C. Dr. Philip S. Smith, chief Alaskan geologist, and Miss Hallman, engineering aid, employees of the U.S. Geological survey, Alaska branch, using an oblique sketch master. The instrument transfers the planimetry from the oblique photgraph to the base manuscript used on air navigation c
Public domain

Washington, D.C. Dr. Philip S. Smith, chief Alaskan geologist, and Miss Hallman, engineering aid, employees of the U.S. Geological survey, Alaska branch, using an oblique sketch master. The instrument transfers the planimetry from the oblique photgraph to the base manuscript used on air navigation c

Rosener, Ann · 1943-01-01 · photo, print, drawing

From the collection of Library of Congress. Free to download, adapt and use — no permission needed.

Credit lineWashington, D.C. Dr. Philip S. Smith, chief Alaskan geologist, and Miss Hallman, engineering aid, employees of the U.S. Geological survey, Alaska branch, using an oblique sketch master. The instrument. 1943-01-01. Rosener, Ann. Farm Security Administration/Office of War Information Collection, Library of Congress. Public domain.

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