Photographer unknown2018-09-212018-09-21circa 1920http://172.16.52.76:80/cdm/ref/collection/coll8/id/98https://hdl.handle.net/20.500.12111/1155Albert Einstein in the Amsterdam laboratory of Pieter Zeeman, who is standing on Einstein's right. The person on Einstein's left is Paul Ehrenfest. The photograph dates to about 1920. Description on photograph's back: "f.l.t.r. P. Zeeman, 1865-1943, Einstein, P. Ehrenfest (1880-1933) [?in] Zeeman’s laboratory at Amsterdam, 1920?“B&WThe Rijksmuseum owns the copyright for this image. This item is protected by copyright and/or related rights. Researchers are free to use this item in any way that is permitted by the copyright and related rights legislation that applies to their use. For other uses, researchers will need to obtain permission from the rights-holder(s). For more information, see https://rightsstatements.org/page/InC/1.0/?language=enEhrenfest, Paul, 1880-1933Einstein, Albert, 1879-1955Zeeman, Pieter, 1865-1943Image