| 1. | Scientific Instrument Society | | | Bringing together people with a specialist interest in scientific instruments, ranging from precious antiques to electronic devices only recently out of production.
www.sis.org.uk |
| 2. | Canadian Historical Microscopical Society | | | Mission is to bring together private (and institutional) collectors of antique (and modern) optical instruments with particular emphasis on microscopes.
www.geocities.com |
| 3. | Antique Telescope Society | | | International organization of colleagues interested in antique astronomical telescopes, books, binoculars and related materials.
www.irhino.com |
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