Institution
Rutgers University
321
Pennsylvania State University
219
West Virginia University
218
University of Pennsylvania
194
Temple University
184
University of Pittsburgh
163
State Library of Pennsylvania
154
Lehigh University
117
Duquesne University
116
Muhlenberg College
99
Montclair State University
88
New York University
83
Millersville University
73
Pennsylvania Western University
71
West Chester University
65
Widener University
64
Bryn Mawr College
51
Drew University
47
Marshall University
43
Swarthmore College
42
Bucknell University
41
Commonwealth University of Pennsylvania
39
Indiana University of Pennsylvania
27
Ursinus College
21
Haverford College
20
Lafayette College
20
Slippery Rock University
20
Villanova University
18
Carnegie Mellon University
17
Drexel University
17
Dickinson College
13
Seton Hall University
12
Rowan University
9
Saint Joseph's University
9
Robert Morris University
8
Franklin and Marshall College
7
King's College
7
Lycoming College
7
Allegheny College
6
Marywood University
6
West Liberty University
6
Gettysburg College
5
La Salle University
5
Westminster College
5
Moravian University
4
Philadelphia Museum of Art
4
Elizabethtown College
3
Washington and Jefferson College
3
Chatham University
2
Eastern University
2
more ...