Brass Microscope
»Engelbert u. Hensoldt,
Wetzlar«, pre 1870 (pre-Leitz!)
Serial number 135. Engelbert u. Hensoldt were the
founders of the optical industry in Wetzlar
even before C. Kellner and Leitz! Very rare manufacturer!
Estimate: € 1,200/1,500
US$ 1,600/2,000
Reserve: € 990/US$ 1,305
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