Group of performers, late 19th century.

Rocking microtome, 1885.

Caldwell automatic microtome, 1884.

Caldwell automatic microtome, 1884.

20th century model of 19th century workshop.

Dallmeyer projection lens, late 19th century.

Stevens' 12-lever signal interlocking frame, late 19th century.

Steam railcar, late 19th-early 20th century.

Portable charcoal water filter, England, late 19th century.

Late 19th century Royal carriage, c 1958

Late 19th century Royal carriage, c 1960

Leyden jar, late 18th, early 19th century.