A rare long one draw telescope made in brass and covered with black leather of a library refracting telescope signed by Bleuler in London.
The telescope measures around 110 cm lenght.
The objective is an achromatic doublet and a screw allows to extend a little the main tube.
The telescope preserves is objective cap.
Fine condition for this rare signature and model.
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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.