London Fine Antiques has dated this piece to the 1860s.
A fascinating, attractive instrument
Displays a desirable aged patina

Polished brass replete with rich golden hues
Primary barrel dressed in quality leather
Affords the spectral analysis of stellar and nebular light
Four small slits pass light through a system of five prisms

Crown wheel to the side allows adjustment to different parts of the spectrum
Engraved with the name J.G. Hofmann, Paris
Supplied with dust-cap for the front element and removable eye-cup
Presented in its box with a cobalt blue velour interior lining
Delivered waxed, polished and ready for the home.

Dimensions:
Max Width: 3cm (1.25'')
Max Depth: 25.5cm (10'')
Max Height: 3.5cm (1.5'')
Box Width: 31cm (12.25'')
Box Depth: 6.5cm (2.5'')
Box Height: 5.5cm (2.25'')
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Our Ref: 18.6665
London Fine Antiques has dated this piece to the 1860s.
Fine antiques curated in england and sold worldwide
You can view the stock and full dealer information on the London Fine Antiques Profile Page