A 19th-Century lacquered brass Martin-type drum microscope, unsigned, with numbered set of 6 objectives, 6 sliders, and other accessories, in fitted mahogany case - 11 3/8in. (28.8cm.) wide; and a Smith & Beck educational microscope No. 1357, with accessories, in case - 12½in. (31.8cm.) long. See illustration (both) (2)
A 19th-Century lacquered brass Martin-type drum microscope, unsigned, with numbered set of 6 objectives, 6 sliders, and other accessories, in fitted mahogany case - 11 3/8in. (28.8cm.) wide; and a Smith & Beck educational microscope No. 1357, with accessories, in case - 12½in. (31.8cm.) long. See illustration (both) (2)
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
