Cuff-type microscope, early 18th century.

A microscope, 19th century.

Jansen's microscope, c 1876.

Janssen's microscope, c 1867.

Musschenbroek hand microscope, Dutch, late 17th century.

Microscope, 1830-1849.

Compound binocular microscope, 1866.

Handbill advertisement for a microscope, early 20th century.

A letter approving John Clark's silver microscope, 18th century.

Powell & Lealand No 2 microscope outfit, 1845.

Microscopes, 1787.

'The Double Constructed Microscope', 1787.