Albert Einstein with colleagues
Shelby White and Leon Levy Archives Center, Institute for Advanced Study, Princeton, NJ, USA
Photograph collection - Einstein-- EB Series-barn collection\11-EB PHOTOS with A.E.-6-7 inch (2 of 2-undated)
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In Leiden (Netherlands), photograph of (front row from l. to r.): Arthur S. Eddington and Hendrik A. Lorentz, and, in the back row (l. to r.): Albert Einstein, Paul Ehrenfest, and Willem de Sitter.