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Medical and Scientific
Open Directory - Recreation: Antiques: Medical and Scientific: Slide Rules
Recreation: Collecting: Computers: Calculators
Science: Math: Education: Slide Rules
Science: Math: History
Science: Math: Software: Calculators: Slide Rules
Chris Osburn's Calculating Instruments
- Classifies and lists slide rule and scales. Grouped by type, size, country of origin and manufacturer. Articles, a discussion forum and a section on buying and selling.
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.
House of Slide Rules
- Large categorised collection with photos and notes.
IM2001 - 7th International Meeting for Slide Rule and Calculating Machine Collectors
- Munich, Germany, September 14 - 16, 2001.
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.
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 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 glossary of slide rule terms and links.
Slide Rule Trade Offer
- An offer to trade kite aerial photographs for slide rules.
Slide Rule Universe
- Includes on line archive of slide rule information, plus a catalog of available 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.
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 Site
- 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.
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.
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