Late 19th century surveying tool
AI Appraisal Report
Valuation
Refined using real market comparables and condition analysis
Item Details
J.H. Steward was a notable maker of surveying instruments in the late 19th century, known for producing high-quality tools for professionals in the field. The company was located on Strand, London, a prominent area for instrument makers during that time.
The date range is supported by the design and construction techniques typical of surveying instruments from that period, including the materials used and the style of the markings.
- J.H. Steward, 406 & 457, Strand, London
Documentation of previous ownership or historical significance would enhance the value. Researching auction records or collector databases may provide additional context.
Condition
- Minor wear consistent with age, including some surface scratches and tarnishing on the brass components.
- The glass is intact but may require cleaning to enhance visibility.
Good condition maintains value but may reduce it slightly compared to excellent condition.
Summary
Late 19th Century Surveying Tool. Made by J.H. Steward. Dating to c. 1880-1900. Materials: Brass, blackened metal, glass. Estimated value: $200 – $400. Condition: Good. The market for antique surveying tools is currently moderate, with a growing interest among collectors of scientific instruments.
Market Data
The market for antique surveying tools is currently moderate, with a growing interest among collectors of scientific instruments.
auction houses, specialty dealers, online marketplaces
How to Improve Accuracy
Open Questions
- Exact age within the proposed date range could not be confirmed from images alone.
- Restoration history is unclear.
Photos That Could Refine This Valuation
- close-up of any additional markings or labels
- detailed images of the glass components
Care & Preservation
- Store in a cool, dry place away from direct sunlight to prevent deterioration.
- Clean with a soft, dry cloth; avoid harsh chemicals that could damage the finish.
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