A German circle protractor with a primitive shape and a scarce signature late 17th century

A German circle protractor with a primitive shape and a scarce signature late 17th century

1300 euros

Circa

late 17th century

Country of manufacture

Germany

Categories: Scientific, Calculating, Drawing Instruments, Surveying Instruments & Mining

Description

An unusual full or circle protractor signed “Joh[a]n[ne]s Kampf” based on a primitive shape. We know only two other examples of such instrument : one signed by Habermel (see The Geometry of War 1500-1750, page 70, number 65 and figure 87 and described as a “Military surveyor’s protractor”) and a second one by Carolus Plato (see Ralf Kern, Wissenchaftliche Instrumente in ihrer Zeit. Fünfter Band, 2018, page 61, number 131).

Following to Zinner and Websterdatabase, we know only one other instrument signed by Johannes Kampf, a “horizontal sundial”.

Strangely, in the present example, the compass is not in the center of the instrument and there are no degrees marked around the protractor. The circle is maybe unfinished ?

A very rare form of mathematical/surveying instrument with a scarce early German signature.

Diameter : 11cm

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FR Le Zograscope

Established by Alexandre Piffault in 2014 and based in Paris, Le Zograscope specializes in antique and rare books in Science, Medicine and Technology, and rare antique instruments in the same fields. We have especially a strong interest in early and continental microscopy, early and special mathematical/drawing instruments, medical and surgical instrument, and rare technology.

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