SOLD – Large theodolite in case – Troughton and Simms

SOLD – Large theodolite in case – Troughton and Simms



Early 20th c.

Country of manufacture

UK and Ireland

Categories: Scientific, Surveying Instruments & Mining


SOLD – A good, clean oxidised brass transit theodolite by ‘Troughton & Simms, London’ with large 5.5″ ( 14 cms ) silver circles and verniers reading to 20 seconds of arc. The two large ‘A’ frame supports hold the 11″ ( 28 cms ) telescope. The vertical circle is divided from 0 – 90 in four quadrants and the horizontal silver scale is divided from 0 – 360, both in degrees.

The instrument stands 13.5 ” ( 34 cms ) high and is in remarkably clean condition.

The mahogany case holds a tribach, striding level, 7″ trough compass, lens erector for terrestrial use, 45 degree ‘elbow’ eye-piece and a plumb bob weight and has an engraved brass plaque to the lid for E. Cruttwell.

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GB Scientific Inspirations

Scientific Inspirations

I live in Lancashire (U.K.) and have been a dealer and collector of scientific and nautical instruments for a number of years. My stock has included some fine items from museums and colleges, which were surplus to their requirements. I occasionally purchase some interesting items from abroad, having established some reliable sources.

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