119. Chevalier Landscape Lens, c. 1840
Signed: 'L'Ingr Chevalier. Opticien du Roi. Tour de l'Horloge du Palais, à Paris'
Planoconvex singlet f14 landscape lens of 400 mm focal length with brass double pivoted lens cap stopping device (acting like a manual shutter) set 60 mm in front of the lens. The barrel slides in its mounting.
Length 70 mm, diameter 95 mm.
Inventory no. 77,898.