- University of Illinois at Urbana-Champaign, University Library
Pictorial. Ownership. 62x89 mm. SUB ROBORE VIRTUS. Crest badge: Azure, a demi-lion rampant; a Maltese cross pendant. Motto: Sub robore virtus (Virtue under strength).
- 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