Where is it from?

Association locations map

Tags

Add your own tags:
Separate multiple tags using a comma

Stand & Horizontal Circle - Theodolite, Troughton & Simms, 10 Inch Object Reg. No: ST 022214 1

Summary:
Stand and horizontal circle for 10 inch theodolite, made by Troughton & Simms, London. Used at Melbourne Observatory.
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.
Acquisition Information:
Transfer from Melbourne Observatory, 1945
Discipline: Technology

More information

Tagged with: surveying apparatus instruments, theodolites
Themes this item is part of: Melbourne Observatory Collection, Engineering Collection, Science & Measurement Collection, Transport Collection, Positional Astronomy at Melbourne Observatory, Weights & Measures at Melbourne Observatory, Melbourne Observatory & Standard Time in Victoria, Astrographic Catalogue, Transits of Venus, 1874 & 1882, Buildings at Melbourne Observatory, Star Observations & Personal Equation, Meteorology at Melbourne Observatory, 1863-1908, Melbourne Observatory, 1863-1944, Troughton & Simms, Instrument Makers, Geodetic Survey of Victoria, 1858-1872
Primary Classification: SURVEYING & NAVIGATION
Secondary Classification: Optical - Surveying
Tertiary Classification: angular measurement
Maker: Troughton & Simms, London, Middlesex, England, Great Britain
User: Melbourne Observatory, South Yarra, Victoria, Australia

Add your comment

  • Museum Victoria does not provide valuations, for more information please visit the valuation infosheet
  • Please note that Museum Victoria staff will not normally respond to comments posted on our website.
Yes No