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Medical and Scientific
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.
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 and Calculating Machine Collectors
- Munich, Germany, September 14 - 16, 2001.
The International Slide Rule Group at Yahoo!
- A community of slide rule enthusiasts. Several hundred posts a month.
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.
Slide Rule Collection
- Todd Tolhurst describes his collection, some with pictures.
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 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 rule information, plus a catalog of available instruments.
The Slide Rules
- A hyperlinked history of slide rules, details of the author's personal collection, and contact information.
- 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.
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