Image: OlafHoltedahl
OlafHoltedahl.jpg (195 × 282 pixels, file size: 17 KB, MIME type: image/jpeg)
Description: Norwegian professor of geology Olaf Holtedahl (1885–1975)
Title: OlafHoltedahl
Credit: Academy biography book published 1911 in Norway.[1]
Author: Unknown photographer (not specified in book)
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
Image usage
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