A large and important military/technical mathematical set by Ernst Matthias Stoltz in Cassel, 1790-1800

A large and important military/technical mathematical set by Ernst Matthias Stoltz in Cassel, 1790-1800

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Circa

1790-1800

Country of manufacture

Germany

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

Description

A rare and important mechanical/technical/military drawing/mathematical set in brass and steel bearing the very rare signature of Ernst Matthias Stoltz or Stolz (active circa 1765-1803).

Stolz was “Hof mechanicus beim Fürstlichen Museum und Hof- Opticus zu Cassel in Hessen”, ei court mechanic for the princely museum of Cassel and court optician of Cassel in Hesse.

The Stoltz instruments seems extremely rare. Furthermore, he was the teacher and predecessor of the most famous Friedrich Wilhelm Breithaupt who was also “Hof mechanicus” for the Cassel Museum after him.

Finally, the large proportionnal dividers bears also the name of “G.v. Cornberg” which could be the name of a military officer ?

 

This is a large set, the case measures 35 cm lenght and the large proportionnal dividers 31 cm lenght.

The first plate contains :

-the large proportionnal dividers which is inscribed in decimal measures what it made this set a very early German mathematical set based on the metric system.

-A three-legged dividers with an extension arm ;

-A pair of dividers with both point removeable and which curved additionnal point and two other points including a very unusual with round head.

 

The second plate in the lid contains a parallel ruler in wood and brass, a protractor and a bullhead pair of dividers of which a bow is missing.

The protractor and bullhead dividers are late replacement.

 

A very important set for the local history of Cassel and quite important for German production with the signature of Stoltz.

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FR Le Zograscope

Established by Alexandre Piffault in 2014 and based in Paris at 5 rue de Condé, 75006, very close to Odéon, 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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