Compound monocular with rack-and-pinion focus, inclination joint, and tri-leg base. The stage is missing as is the sub-stage mirror. The “Improved Compound Microscope BY ABRAHAM LIVERPOOL” inscription on one foot refers to a Liverpool instrument firm that was in business from 1817 to 1860. Philip Carpenter, a London optician, described a similar microscope in 1825.
Ref: Philip Carpenter, A Description of Carpenter’s Improved Compound Microscope for Opake & Transparent Objects (London, 1825).
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