Thomas Jones of Liverpool | Mid-19th Century Alidade Compass | Walnut-Cased Precision Survey Instrument | Mid 19th Century
Description
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Historical Context & Origin
Region: United Kingdom (Liverpool)
Material: Walnut case, silvered degree ring, paper label
Period: Mid-19th Century
Description
A fine example of 19th-century British precision instrumentation, this walnut-cased alidade compass was crafted by Thomas Jones of Liverpool, a respected maker of scientific and surveying instruments. Measuring 6.1 by 6.1 inches when closed, it combines durability and precision, reflecting the essential role such tools played in navigation, surveying, and cartography during Britain’s age of industrial and exploratory expansion. The silvered degree ring, complemented by a paper label, allowed for clarity in measurement, while the walnut housing provided strength and protection.
Features
- Walnut case, compact and protective
- Silvered degree ring for clear, precise readings
- Paper label with original markings
- Compact size: 6.1 in x 6.1 in closed
- Crafted by Thomas Jones of Liverpool, renowned instrument maker
Cultural Significance
Known as a turning board, the alidade compass was indispensable to explorers, geographers, and military engineers of the 19th century. It enabled accurate horizontal angle measurements, supporting the production of maps and surveys critical to both scientific inquiry and colonial expansion. Thomas Jones’s instruments were widely respected for their craftsmanship and precision, making them prized tools in Britain’s legacy of exploration and industry.
Condition
Well-preserved with original silvered ring and paper label intact. Surface wear and patina consistent with age, enhancing its historical authenticity.
Dimensions (approximate)
Height: 6.1 in
Width: 6.1 in (closed)
Age
Mid-19th Century
Description
Historical Context & Origin
Region: United Kingdom (Liverpool)
Material: Walnut case, silvered degree ring, paper label
Period: Mid-19th Century
Description
A fine example of 19th-century British precision instrumentation, this walnut-cased alidade compass was crafted by Thomas Jones of Liverpool, a respected maker of scientific and surveying instruments. Measuring 6.1 by 6.1 inches when closed, it combines durability and precision, reflecting the essential role such tools played in navigation, surveying, and cartography during Britain’s age of industrial and exploratory expansion. The silvered degree ring, complemented by a paper label, allowed for clarity in measurement, while the walnut housing provided strength and protection.
Features
- Walnut case, compact and protective
- Silvered degree ring for clear, precise readings
- Paper label with original markings
- Compact size: 6.1 in x 6.1 in closed
- Crafted by Thomas Jones of Liverpool, renowned instrument maker
Cultural Significance
Known as a turning board, the alidade compass was indispensable to explorers, geographers, and military engineers of the 19th century. It enabled accurate horizontal angle measurements, supporting the production of maps and surveys critical to both scientific inquiry and colonial expansion. Thomas Jones’s instruments were widely respected for their craftsmanship and precision, making them prized tools in Britain’s legacy of exploration and industry.
Condition
Well-preserved with original silvered ring and paper label intact. Surface wear and patina consistent with age, enhancing its historical authenticity.
Dimensions (approximate)
Height: 6.1 in
Width: 6.1 in (closed)
Age
Mid-19th Century
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