Slide Rules and Calculators
Images grouped by type.
House of Slide Rules
Large categorised collection with photos and notes.
Dennis Farr's Slide Rule Collection
List of collected sliderules.
SlideRule Trading Group
Private trading for members of the group.
The International Slide Rule Group at Yahoo!
A community of slide rule enthusiasts. Several hundred posts a month.
Slide Rule Page
Archives of photos of large personal collection.
Peter Owen, Collector of Slide Rules
Texts and photographs.
Slide Rule Emporium
Pickett Slide rules forsale. New in the box and many models available from the pocket size to 4 foot teaching rules.
Ted Hume, Slide Rule Trader
Slide rules bought, sold and traded.
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.
David Crate's Slide Rules
Assorted slide rules for sale as well as some historical information.
Slide Rule Trade Offer
An offer to trade kite aerial photographs for slide rules.
The Death of the Slide Rule
Hyperlinked essay with citations by James Redin covering the rise of the portable calculator and the demise of its predecessor.
Slide Rules
Dedicated to one man's collection of slide rules (and includes a photo gallery), plus a few links for those who want to find out more about them or where to buy one.
Slide Rules from German Manufacturers
A collection of slide rules, with descriptions and pictures. Also, some links to other slide rule sites.
Slide Rules in Thailand
Front and back mages of some slide rules for sale.
Kung's OnLine Slide Rule Bookmarks
Comprehensive annotated collection of links.
The Slide Rules
A hyperlinked history of slide rules, details of the author's personal collection, and contact information.
HP Museum - Early Calculators
Some non-HP calculators that were introduced anywhere from centuries ago to the late 60's.
Chris Osburn's Slide Rule Collection
Explanation of slide rule scales, FAQ about buying and selling rules, and a description of his collection.
Space Race Slide Rules
Features some slide rules used in early American and Soviet space programs.
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.
The Oughtred Society
Membership group dedicated to the history and collection of slide rules.
Peter Holland's Slide Rules
In German and English. Items for trade with descriptions of condition.
IM2001 - 7th International Meeting for Slide Rule and Calculating Machine Collectors
Munich, Germany, September 14 - 16, 2001.
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.
The Slide Rule Guy
Site for Jay Francis, a collector of slide rules and antique mechanical calculators. Items for sale or trade, and many related links.
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. Also offers a comprehensive glossary of slide rule terms and links.
Slide Rule Instructions and Prices.
Instructions on use of slide rules, and a guide to the price of slide rules.
The Sphere Research Slide Rule Archives
Slide rule model information, pictures, and history from all over the world.
Sphere Research's Learning about Slide Rules Site
Repository for information, pictures, history and links to sellers, other sites and experts, and an online store.
Discovering Slide Rules
Relates a story about how one person found a giant cache of new-in-box slide rules.
Slide Rule Universe
Extensive on line archive of slide rule information, plus a catalog of available rules.
Sphere Research's Slide Rule Universe
Online sales and swap meet. Private individuals only.
Otis King's Patent Calculator
Probably the most complete collection of Otis King's Patent Calculator (cylindrical slide rule) information on-line.
Technical Collectibles
Slide rules and planimeters for sale.
Slide Rule Collection
Todd Tolhurst describes his collection, some with pictures.
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