- Museum of the History of Science, Oxford
- Museo Galileo - Formerly the Institute and Museum of the History of the Science, IMSS, Florence, Italy
- Epact: Scientific Instruments of Medieval and Renaissance Europe
- Science Museum - UK
Museums
- 1500-1800 instruments
- Andrew Alpern Architectural Instruments Collection
- Drawing Instruments - A Collector's Guide
- Drawing Instruments Yahoo group
- Heerbrugg Collection
- Leadholder
- Mathematical Instruments - A private collection
- Planimeter
- Science and Society Picture Library - Categories
- Websters' Instrument Makers Database
Drawing Instruments
- Scales and Rural Museum Home Page
- English weights and measures Home page
- Gilai Collectibles- Scales and Balances postal, spring, opium.
- International Society of Antique Scale Collectors
- Letter Scales - brievenwegers
- Verification Marks Weights and Measures: What and Where?
- Simmons Gallery
Scales and Weights
- MapTack's Public Gallery
Surveying & Mapping Tools
- The Sikes Hydrometer A Tradition Since 1816
Hydrometers
- The Calculating Machines
- A Collection of Mechanical Calculators
- The Computer Museum
- Eric's Slide Rule Site
- Gordon's Cyber Museum
- Greg's Slide Rules
- International Slide Rule Museum
- Keuffel & Esser Catalogs and Manuals
- Otis King's Patent Calculator
- Ron Manley's Slide Rule Site
- The International Slide Rule Yahoo Group
- Slide Rule Webring
Computing Instruments
- AntiqBuyer.com
- Fleaglass.com
- The Gemmary
- Gilai Collectibles
- Tesseract
Antique Instruments Dealers
- Grace's Guide of British engineering. 1750 - 1960s
- Knight's American Mechanical Dictionary
- Makers' Marks on British Silver
- Opticalia Museum and Catalogue
- PBS Antiques Roadshow Online
Antique Collecting Resources at Large
Link exchanges with related sites are welcome. If you know or have any website which you think should be included in this page, please don't hesitate to let me know.
