Access and Use
Copyright Status
Materials from the Ellerton-Clements Cyphering Book Collection are governed by the Copyright Law of the United State (Title 17, U.S.C.) and other applicable international copyright laws.
Access and Restrictions
The cyphering book collection of Nerida F. Ellerton and McKenzie A. Clements is open to research. Many collections are stored off-site and advance notice is needed to retrieve these items for research use. Researchers are advised to contact the Manuscript Reading Room prior to visiting.
Physical Access
Many volumes in this collection are fragile and require careful handling. Some volumes, as indicated in the container list, are bound in period wallpaper that may contain harmful substances and require special handling. Consult reference staff in the Manuscript Division for more information.