Photographer unknown2018-09-252018-09-251957http://172.16.52.76:80/cdm/ref/collection/coll3/id/293https://hdl.handle.net/20.500.12111/4264B&WPermission to use this image must be requested from the Institute's Archives. Please contact archives@ias.edu.Dr. and Mrs. René Thom with their children, Françoise (l.) and ElizabethImage