Front surface lathe for contact lenses by G. Nissel & Co. Ltd., London, 1965-1969. Front surface lathe for contact lenses, with display of lens making process, and box for lathe
Four stages in the manufacture of a plastic haptic lens, with two plastic cases by G. Nissel & Co. Ltd., London, c.1982. Four stages in the manufacture of a plastic haptic lens
One of four stages in the manufacture of a plastic haptic lens by G. Nissel & Co. Ltd., London, c.1982. One of four stages in the manufacture of a plastic haptic lens
Front surface lathe for contact lenses by G. Nissel & Co. Ltd., London, 1965-1969, sectioned to show workings Front surface lathe for contact lenses by G. Nissel & Co. Ltd.
One of six stages in the manufacture of a hard corneal lens by G. Nissel & Co. Ltd., London. One of six stages in the manufacture of a hard corneal lens
Five of six stages in the manufacture of a hard corneal contact lens by G. Nissel & Co. Ltd., London. (sixth stage is lens, stored in plastic case); includes four brass mounting tools, completed lens in case. Five of six stages in the manufacture of a hard corneal contact lens