Very unusual hand spectroscope by Hofmann, circa 1855
€950
Circa
1850-1860
Country of manufacture
France
Description
A very unusual hand-spectroscope by Jean Georges Hofmann, the German-born Parisian instrument maker, based rue de Buci in Paris from 1850 and specialized in polarizing instrument and prism monocular or prism telescope.
This hand spectroscope has a very unusual design, with a thermometer used to determine whether the rotational power of the liquid varies depending on the temperature (the thermometer is persently broken but could be changed).
We cannot find antique or modern documentation about this very unusual design.
A rare and superb instrument in great condition.
The instrument measures 22,5 lenght and the box 26,5x19x9cm.
Ask the Dealer
Dealer information
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.
Personnal website : https://www.lezograscope.com/
