Protami field microscope of the second model  by Hensoldt, ca. 1930

Protami field microscope of the second model by Hensoldt, ca. 1930

Stock Number: FG_21043


The “Protami" (professionellen- taschenmikroskop) is the high end model of the Hensoldt “Tami family”. The Protami was introduced in 1925, with production continuing until the beginning of World War II. Design improvements occurred between the 1920s and 1930s


Weight: 1008 gr. (packed), 849 gr. (unpacked). Height: 177 mm. (packed), 260 mm. (unpacked, tube fully extended), diameter: 71 mm. (base).

Country of manufacture

UK and Ireland

Categories: Veterinary, Scientific, Other Medical Antiques, Microscopy, Mineralogy & Gemmology, Natural history


The Protami is constructed of brass with chrome and a japanned surface finish. Its saltshaker-like outer case is made of aluminum alloy finished in black-crinkled enamel. It is provided with a three-objective turret, which makes changing magnifications an easy and speedy process.  Together with the draw tubes, this provides a broad choice of magnifications ranging between 40X and a theoretical 1450X, when used in the oil immersion mode. When the lower achromatic objective “T” (for “Tami”) is selected, it provides the magnification sequence of 45-250 times. The  “M” (“Metami”) marked dry objective provides the magnifications of 340-760X, as indicated by the scale on the tube. The “P” (“Protami”) objective is an oil immersion of 1/12″ with a numerical aperture of 1.34, yielding the magnification range of 915-1450X. The microscope is equipped with an Abbe condenser with iris diaphragm, flip-up stage clip, substage slide-out canister containing a tube for immersion oil, and flat and concave mirrors on an adjustable arm. Like the Metami, the stage can be flipped out of the optical path for easier access for the replacement of the objectives.

The Protami was an expensive microscope for its time. In 1933, its price was 230 RM. As mentioned previously, this was more than twice the price of a standard laboratory-quality bench-top microscope, which averaged around 150-160 RM.


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IL Gilgamesh

Gilgamesh was the mythological hero of the cultures of ancient West Asia, who set out on a journey in which he sought youth and eternal life.
Fleaglass Gilgamesh is located in Israel. As an archaeologist researching the material culture of the distant past and using the microscope as a powerful research tool, I have collected microscopes for over two decades from this fantastic tool's first 300 years of existence and researched the cultural context of their use. Passion has become an obsession, and I cultivate the complete and almost unique West Asian collection of historical microscopes. Respectively, I put up surplus or exciting items from the collection for sale. I would be happy to advise any interested collector free of charge. I would love to send photos, information and bibliographic references and discuss the sale details of the items offered here for sale.

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