241
Note: '; ...University of Pennsylvania...
Photo
242
243
Note: '; ...University of Pennsylvania...
Photo
244
Note: '; ...University of Pennsylvania...
Photo
245
Note: '; ...Pennsylvania Railroad...
Photo
246
Note: '; ...University of Pennsylvania...
Photo
247
Note: '; ...University of Pennsylvania...
Photo
248
Note: '; ...University of Pennsylvania...
Photo
249
Note: '; ...University of Pennsylvania...
Photo
250
Note: '; ...Pennsylvania Railroad...
Photo
251
252
Note: '; ...Pennsylvania Railroad...
Photo
253
Note: '; ...Pennsylvania Railroad...
Photo
254
Note: '; ...Pennsylvania Railroad...
Photo
255
256
257
Note: '; ...University of Pennsylvania...
Photo
258
Note: '; ...University of Pennsylvania...
Photo
259
Note: '; ...Pennsylvania Railroad...
Photo
260
Note: '; ...University of Pennsylvania...
Photo