- University of Illinois at Urbana-Champaign, University Library
Shakespeare Memorial Theatre (Stratford-upon-Avon, England). Egyptian and Imperial Roman Influence; c. 35-30 BCE. Http://images.library.uiuc.edu/projects/Motley/prodnote/prodanto.asp.
- Rare Book and Manuscript Library, University of Illinois at Urbana-Champaign; For questions regarding these materials, please contact the Rare Book and Manuscript Library: https://illinois.edu/fb/sec/7016277