Arkivism
Violet Ray treatment on white rats at Ag. Dept., 1/13/26
Public domain

Violet Ray treatment on white rats at Ag. Dept., 1/13/26

1926-01-01 · photo, print, drawing

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

Subjects
glass negatives
Credit lineViolet Ray treatment on white rats at Ag. Dept., 1/13/26. 1926-01-01. National Photo Company Collection, Library of Congress. Public domain.
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