Summary
10 inch theodolite, made by Troughton & Simms, London. Vertical arcs of approx 45 degrees. Used at Melbourne Observatory.
Physical Description
Scales on silver to five minutes. Micrometers & microscopes. Tangent screws & spring. Stride level. The head of each opposing micrometer microscope is divided into 60 equal parts, thus enabling the horizontal circle to be read to one second.
More Information
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Collection Names
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Collecting Areas
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Acquisition Information
Transfer from Melbourne Observatory, 1945
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Maker
Troughton & Simms, London, Middlesex, England, Great Britain
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User
Melbourne Observatory, South Yarra, Greater Melbourne, Victoria, Australia
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Classification
Surveying & navigation, Optical - surveying, Angular measurement
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Category
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Discipline
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Type of item
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Keywords
