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
Six stages in the manufacture of a hard corneal contact lens by G. Nissel & Co. Ltd., London., includes brass mounting tools and plastic lens case. Six stages in the manufacture of a hard corneal contact lens by G. Nissel & Co. Ltd.