![](http://www.alamy.com/thumbs/6/35ED4851-22A1-47DD-BB2A-C05FC424B668/J3109F.jpg)
Paul Ehrenfest and Pascual Jordan 1920s
Size: 1881px × 1328px
Photo credit: © The History Collection / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ancient, art, book, bygone, copy, cover, drawing, editorial, historic, history, illustration, line, map, news, painting, photo, photograph, photography, space, stock, textbook, vintage