From University of Penn Archives Circa 1920 http://imagesvr.library.upenn.edu/cgi/i/image/image-idx?type=detail&cc=pennarchive&entryid=X-20050915004&viewid=1&sstrt=&hits=&q1=&cat1=&thsz=&txsz=&slsz=1&med=&quality=thumbnail&ts=&c=pennarchive
Univerisity of Penn Archive http://imagesvr.library.upenn.edu/cgi/i/image/image-idx?type=detail&cc=pennarchive&entryid=X-20050915004&viewid=1&sstrt=&hits=&q1=&cat1=&thsz=&txsz=&slsz=1&med=&quality=thumbnail&ts=&c=pennarchive
University of Pennsylvania Archives http://imagesvr.library.upenn.edu/cgi/i/image/image-idx?type=detail&cc=pennarchive&entryid=X-20050915004&viewid=1&sstrt=&hits=&q1=&cat1=&thsz=&txsz=&slsz=1&med=&quality=thumbnail&ts=&c=pennarchive