Fuller's Calculator or Cylindrical Slide Rule for sale at Pamono
Cylindrical Slide Rules | Smithsonian Institution
Fuller calculator - Wikipedia
Swiss (Suisse) and CURTA Slide Rules
A cylindrical form of slide rule made by McFarlane. Cylindrical slide rules, like circular versions of the instrument, were designed to get greater sc... - SuperStock
The World's Largest Commercial Cylindrical Slide Rule has a Scale Length of 24m | blog@CACM | Communications of the ACM
Keuffel & Esser, Thacher Cylindrical Slide Rule | History Colorado