"A table of English silver coins 1066-1727", Conversion tables for Hebrew, Greek, Roman, English [removed to MS Qa12:1.3], Box: 5, Folder: 4D:2. Sotheby Family Papers, MS 4. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/262010 Accessed May 20, 2024.