Very large telescope for use in lighthouses and other observation posts along the coast. It’s a single draw telescope with adjusting device. Length when closed 122 cm, pulled out 165 cm. The mainbody consists of fine quality mahogany and in good condition. The eye lens is fitted with a sliding lens protector. The objective lens has a diameter of 78 mm (3.1 in) and is provided with a brass lens cap. The barrel has taken on a nice antique patina, polished over the years.
The instrument makers, father and son Richard, had their workshop at 11 Quai St-Antoine in Lyon at least between 1831 and 1889. Later the workshop was moved to Paris.

Catalog: NM.4-22
Date: ca.1850
DL: 9×122/165 cm (3.5×48/65 in)
Signed: RICHARD. OPTICIEN À LYON
Origin: France
Condition: in good and working condition, wear consistent with age and use