Lens by Lerebours et Secretan Paris
Large Lerebours et Secretan Lens. Paris circa 1860, with cap and washer stops. Le photographer's name is engraved on the lens "J. Cornaille" and there are some other details engraved on the flange: "Foyer 650 mm, ouverture relative F : 184.108.40.206."
Good size, 11cm diameter without the flange, and 15.5 cm tall.
Lerebours et Secretan