- University of Illinois at Urbana-Champaign, University Library
Pictorial. Ownership. 75x101 mm. MARX and ANNE OBERNDORFER / EX LIBRIS / [artist's name:] SEYMOUR. In a room with a wall of books, a woman leans on grand piano while a man plays; open book of music. Badly discolored by collector's glue.
- Rare Book and Manuscript Library, University of Illinois at Urbana-Champaign; For more information, please contact the Rare Book and Manuscript Library: https://illinois.edu/fb/sec/7016277