- University of Illinois at Urbana-Champaign, University Library
Mixed. Ownership. 93x95 mm. [cipher:] RD / F.L.F.M. / RICHARD D'AUBIGNY. Roundel containing cipher: RD. In ms: 'A No 2.
- 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