An early 19th-Century brass Martin-type drum microscope, with rack and pinion focusing, a numbered set of 6 objectives and other items, in mahogany case - 11½in. (29.2cm.) wide; and another drum microscope, similarly equipped, in case - 10¾in. (27.3cm.) wide. (2)
An early 19th-Century brass Martin-type drum microscope, with rack and pinion focusing, a numbered set of 6 objectives and other items, in mahogany case - 11½in. (29.2cm.) wide; and another drum microscope, similarly equipped, in case - 10¾in. (27.3cm.) wide. (2)
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
