Robert P. Matthews, photographer2018-09-252018-09-251992http://172.16.52.76:80/cdm/ref/collection/coll3/id/989https://hdl.handle.net/20.500.12111/4458Robert Gunning (l.) and Joseph John Kohn in a image from an unidentified publication. See the caption for more information.B&WPermission to use this image must be requested from the Institute's Archives. Please contact archives@ias.edu.Robert Gunning (l.) and Joseph John KohnImage