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.B&WPermission to use this image must be requested from the Institute's Archives. Please contact archives@ias.edu.Ehrenfest, Paul, 1880-1933Einstein, Albert, 1879-1955Zeeman, Pieter, 1865-1943Image