Dollond Microscope, early 19th century.

Daguerreotype sensitising box apparatus, 19th century.

A microscope, 19th century.

Apparatus for continuous intra-muscular infusion of penicillin, c 1950s.

Hufner's apparatus, c 1885.

George Dollond, English optician, early 19th century.

Faraday's specific inductive capacity apparatus, c 1830s.

Trade card of Dollond & Co, scientific instrument makers, 19th century.

George Dollond, optician, English optician, c 1850.

Wheatstone's wave machine, c 1842.

G Dollond, 1854-1866.

Faraday's specific inductive capacity apparatus, c 1830s.