- University of Illinois at Urbana-Champaign, University Library
Armorial. Ownership. 82x117 mm. EX LIBRIS / Dr. Joseph C. Egbert. Escutcheon azure (blue) a cross flory or (gold). Crest: carpenter's square with Masonic symbols, dagger, square of the hypotenuse; right, an owl on pile of books; below: kite, key and lightning bolt.
- 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