Photograph of Professor Abraham Weiss
Yeshiva University Archives
GFDL
Yeshiva University Archives, Mendel Gottesman Library, New York, NY 10033 (retrieved image from <a class="external free" href="https://commons.wikimedia.org/wiki/File:Abraham_Weiss.pdf">https://commons.wikimedia.org/wiki/File:Abraham_Weiss.pdf</a> )