A good and complete example of this rare model of chromatophotoptometer mounted on a brass rounded stand.
The main cylindar tube contains an optifal train including a cut quatz plate and polarizinfg nicol prism.
The ophtalmological instrument was used for colour blindness test.
The present exemple is not signed but certainly gy Giroux. It is complete and in working condition.
Lenght : 20,5 cm / Height 22,5 cm.
The model on stand are quite rare.
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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.