A brass monocular compound microscope with case, the scope engraved Casella Maker to the Admiralty & Ordnance London; image credit on full record.
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Microscope; Casella, Monocular Compound, Brass, Single Nosepiece, Y Base, Case.
Casella lacquered brass monocular compound microscope, London, single draw eyepiece with scale on side marked 15-20, single nosepiece with three objec... [more detail available via subscription]