Antiques of Science & Technology
Pictures and descriptions of a number of 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.
Chris Sangwin's Slide Rule Page (With Other M
Hyperlinked essays about slide rules and related tools, and some copyrighted downloadable files for making one's own slide rules.
David Crate's Slide Rules
Assorted slide rules for sale as well as some historical information.
Dennis Farr's Slide Rule Collection
List of collected sliderules.
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.
House of Slide Rules
Large categorised collection with photos and notes.
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
Munich, Germany, September 14 - 16, 2001.
Kung's OnLine Slide Rule Bookmarks
Comprehensive annotated collection of links.
Mechanical Calculating Equipment
Collection of Wolf-G. Blümich. Berlin, since July 1998 periodically updated. Bilingual [mostly German, but some English].
Mike Konshak's Slide Rules for Hairy-Eared En
A private collection of slide rules in excess of 500 different items scanned full size and categorized by company or continent. Also offers a comprehensive glossary of slide rule terms.
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 Collection
Todd Tolhurst describes his collection, some with pictures.
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 Page
Archives of photos of large personal collection.
Slide Rule Trade Offer
An offer to trade kite aerial photographs for slide rules.
Slide Rule Universe
Extensive on line archive of slide rule information, plus a catalog of available rules.
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 and Calculators
Images grouped by type.
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.
SlideRule Trading Group
Private trading for members of the group.
Space Race Slide Rules
Features some slide rules used in early American and Soviet space programs.
Sphere Research's Learning about Slide Rules
Repository for information, pictures, history and links to sellers, other sites and experts, and an online store.
Sphere Research's Slide Rule Universe
Online sales and swap meet. Private individuals only.
Technical Collectibles
Slide rules and planimeters for sale.
Ted Hume, Slide Rule Trader
Slide rules bought, sold and traded.
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.
The International Slide Rule Group at Yahoo!
A community of slide rule enthusiasts. Several hundred posts a month.
The Oughtred Society
Membership group dedicated to the history and collection of slide rules.
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.
The Slide Rules
A hyperlinked history of slide rules, details of the author's personal collection, and contact information.
The Sphere Research Slide Rule Archives
Slide rule model information, pictures, and history from all over the world.