Slide Rules
Chris Osburn's Slide Rule Collection
Explanation of slide rule scales, FAQ about buying and selling rules, and a description of his collection.
David Crate's Slide Rules
Assorted slide rules for sale as well as some historical information.
Discovering Slide Rules
Relates a story about how one person found a giant cache of new-in-box slide rules.
Eric Marcotte, a Slide Rule Collector
A personal compilation of information on slide rules with much information on his own collection.
Giovanni Breda's Slide Rule Collection
Giovanni Breda shows his collection. A sheet for each rule is provided including high resolution images. Links to other collector's site are also provided.
HP Museum - Early Calculators
Some non-HP calculators that were introduced anywhere from centuries ago to the late 60's.
IM2001 - 7th International Meeting for Slide Rule and Calculating Machine Collectors
Munich, Germany, September 14 - 16, 2001.
Model Aircraft Performance Slide Rule Calculator
Custom slide rule for sale. Online calculations which cover the same functions available on the site. Manual included with the slide rule.
Napier's Bones and the Genaille-Lucas Rulers
Presents Napier's Bones and the Genaille Lucas rulers in ready to print forms: Postcript and PDF.
Otis King's Patent Calculator
Probably the most complete collection of Otis King's Patent Calculator (cylindrical slide rule) information on-line.
Peter Holland's Slide Rules
In German and English. Items for trade with descriptions of condition.
Slide Rule Emporium
Pickett Slide rules forsale. New in the box and many models available from the pocket size to 4 foot teaching rules.
Slide Rule Instructions and Prices.
Instructions on use of slide rules, and a guide to the price of slide rules.
Slide Rule Museum
Dedicated to engineers past and present, this collection of slide rules and manuals have in excess of 1000 different items scanned full size and categorized by company or continent…
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