Accession No

3109

Brief Description

prism 1899

Origin

Maker

Accession No

5824

Brief Description

demonstration optical toy, possibly continental, circa 19th century

Origin

Maker

unknown

Accession No

3114

Brief Description

pair of prisms, c.1900

Origin

Maker

Accession No

6094

Brief Description

mechanical electronic calculator, Comptometer 993s, with three instruction booklets, by Bell Punch Company Ltd., English, 1964 (c)

Origin

England

Maker

Bell Punch Company Ltd. Sumlock Comptometer Ltd.

Accession No

1863

Brief Description

heliostat, late 19th century

Origin

Maker

Accession No

4762

Brief Description

botanical wallchart on structural formula of glucose, maltose, starch and cellulose (after Hora), by G. B. 'Herbert' Newham, 19th to 20th century

Origin

England

Maker

Newham, G. B. 'Herbert'

Accession No

2424

Brief Description

plug type Wheatstone Bridge, Post Office pattern, by R. W. Paul, English, 1901

Origin

England; London

Maker

Paul, Robert W.

Accession No

1982.1

Brief Description

vacuum tube, 1875–1925

Origin

Maker

Accession No

2253

Brief Description

slide rule for the determination of longitude by the lunar distance method, by Robert Brettell Bate, after the invention of David Thomson, English, 1820 (c)

Origin

London; England

Maker

Brettell Bate, Robert

Accession No

4750

Brief Description

botanical teaching diagram, Utricularia, longitudinal section through bladder, by Curtis

Origin

Maker

Curtis