Photographer unknown2018-09-252018-09-251989http://172.16.52.76:80/cdm/ref/collection/coll3/id/940https://hdl.handle.net/20.500.12111/4827School of Mathematics Faculty member Thomas Spencer sitting next to Pei Hsiang.ColorPermission to use this image must be requested from the Institute's Archives. Please contact archives@ias.edu.Image