Details
A late 19th-Century cased zinc-lined reflecting electrometer,
with ivory maker's label inscribed Griffin Garrick Street London, with lacquered-brass contacts, raised on three adjustable brass screw feet -- 22in. (55.9cm.) high; and a pair of demonstration coils by Griffin Kingsway London, mounted on ebonised boards -- 6in. (16.5cm.) square; and a reflection galvanometer scale by R.W. Paul Hatton Garden London, with frosted scale, lacquered-brass stand, mirror and cross-wire (3)
with ivory maker's label inscribed Griffin Garrick Street London, with lacquered-brass contacts, raised on three adjustable brass screw feet -- 22in. (55.9cm.) high; and a pair of demonstration coils by Griffin Kingsway London, mounted on ebonised boards -- 6in. (16.5cm.) square; and a reflection galvanometer scale by R.W. Paul Hatton Garden London, with frosted scale, lacquered-brass stand, mirror and cross-wire (3)