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