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Teschner 5159

 Trichina Microscope "Teschner", c. 1900

The microscope has rack-and-pinion focusing. Stamped on wooden table "W. Teschner, Berlin".  Inside the door, a magnification table with microscope serial number 5162; this is different from the one impressed on the stage (5159).

Trichina (Trichinella spiralis) is a parasitic nematode worm that causes trichinosis, a serious disease in humans and other meat-eating mammals. Free Trichinella were seen for the first time by Zenker in 1860 and Rudolph Virchow (1821-1902) succeeded in inducing various German states to make the testing of pig's meat for trichinosis in abattoirs compulsory (c. 1870).

 

Bononiae Microscope - Teschner 5159 case Bononiae Microscope - Teschner 5159 magnification table Bononiae Microscope - Teschner 5159 stand Bononiae Microscope - Teschner 5159, the serial number

Bononiae Microscope - Teschner 5159, sub-stage detail Bononiae Microscope - Teschner 5159, measuring rod on the upper part of the stage Bononiae Microscope - Teschner 5159 objective

 Bononiae Microscope - Teschner 5159, the firm engraving on the base 

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