Abraham, Liverpool c. 1840

Monocular microscope

Abraham, Liverpool c. 1840. Monocular microscope Abraham, Liverpool c. 1840. Monocular microscope
Abraham, Liverpool c. 1840. Monocular microscope

 

mechanical stage
Microscope in case: Abraham, Liverpool c. 1840 Abraham Liverpool

A lower section of the case houses prepared slides dated 1847. Among the accessories supplied with this microscope are two objectives with canisters, two eyepieces, a limb mounted stage condenser, a live box, a stage forceps, and some dissection tools.

There is a mechanical stage with controls located under the stage. Above the stage is a rotating spring super-stage. Below the stage is a disc of apertures. The mirror is single sided and concave. While the main focusing adjustment moves the limb and tube up and down, the fine focus moves the nose-piece with the objective.

An identical example is located at the Science Museum, London signed : Carpenter & Westley, 24 Regent Street, LONDON (cat. ref: 25-78). A similar one where the main focus adjustment moves the stage was listed at auction in 2022. An additional example of this microscope signed James Robinson, Dublin was offered at the June 29, 1995 Christie's auction sale as lot 190. Another similar example, signed by Abraham, but lacking the mechanical movements of the stage has been recently been offered for sale.

See a discussion of the work of the Liverpool instrument maker Abraham Abraham and his partnership with J. B. Dancer.

 

An Abraham Abraham advertisement from 1857

An advertisement from 1857

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