Georgian Proportional Dividers in sharkskin case by Jacob Abraham, Bath

Georgian Proportional Dividers in sharkskin case by Jacob Abraham, Bath

Stock Number: 35- 4184

GBP 285.00

Antique Georgian Proportional Dividers (proportional compasses) for sale


163mm long



Country of manufacture

UK and Ireland

Categories: Scientific, Drawing Instruments


These fine quality proportional dividers, signed Abraham, BATH, are in exceptionally good condition, with few signs of use. More unusually, the black sharkskin case is in perfect condition, as good as any I have seen. These dividers and case are very much in late Georgian style. They came from a deceased estate with a rolling rule dated 1811. Jacob Abraham was first recorded working in St Andrew’s Terrace, Bath (Somerset) in 1809. It appears likely the two associated items are of the same period and have remained together.
The rule appears in a separate listing.

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GB Ganymede Antiques

Ganymede Antiques

Ganymede Antiques, established in 1992, is based in Muswell Hill, London, U.K. We specialise in scientific instruments from the 18th and early 19th centuries, with particular interest in sundials, and drawing and calculating instruments. We are always keen to buy interesting instruments, and entire collections. We exhibit at the twice yearly International Antique Scientific Instrument Fair in London. Keith Petts can be contacted at

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