John Browning Binocular Microscope, 63 Strand, London, No. 714, lacquered brass instrument with rackwork focus, signed as above on main tubes, triangular pillar with height adjustment knob, rectangular pillar with X-Y rack-and-pinion adjustments, all resting on a "Y"-shaped base, ht. 18 in.
John Browning Binocular Microscope, 63 Strand, London, No. 714, lacquered brass instrument with rackwork focus, signed as above on main tubes, triangular pillar with height adjustment knob, rectangular pillar with X-Y rack-and-pinion adjustments, all resting on a "Y"-shaped base, ht. 18 in.
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.jpg "Quelle: Christie's")
.jpg "Quelle: Christie's")
