Calculator time-line Chronology of calculator developments. Calculator resources Links to other calculator sites. Where to ask questions. Where to find vintage calculators. Each of the sections shown above is separate.
Some pages occur more than once, in different sections.
The site is updated as new information and photographs become available. Your comments, information, corrections, etc., will be gratefully received and used to enhance the site. A member of the Calculator Collecting Ring. This Calculator Collecting site owned by Nigel Tout .