£4,200
W.H. BULLOCH, CHICAGO. A FINE LATE 19TH CENTURY AMERICAN NO. 1 PROFESSIONAL BINOCULAR MICROSCOPE, displayed under a glass dome. The signed tripod base with calibrated rotating double column, supporting a high quality instrument with concentric rotating mechanical stage, the sub-stage is made in two parts and can swing seperately on a single pivot, the base is signed and numbered 386. (42cm high on smallest setting, not including plinth and dome. )
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