Accession No

2063

Brief Description

rectifier in the form of a vacuum tube, 1/4 20th Century

Origin

Maker

Accession No

0351

Brief Description

horizontal dial, supposedly by Butterfield, but in fact 1/4 18th C with later replacements (including gnomon)

Origin

Maker

Accession No

1987.1

Brief Description

vacuum tube, 1930

Origin

Maker

Accession No

4529.343

Brief Description

Electronic pocket calculator, 1976 (c)

Origin

Maker

Accession No

0521

Brief Description

spectacles, temple, 1800-1850 (c)

Origin

Maker

Accession No

4529.208

Brief Description

Letter logic pocket electronic learning aid, by Texas Instruments, Italian, 1980 (c)

Origin

Italy

Maker

Texas Instruments

Accession No

0329

Brief Description

fake horizontal dial, English, c. 1920 but made to appear older

Origin

England

Maker

Accession No

4529.210

Brief Description

Litton Monroe 20 electronic pocket calculator, by Monroe (a division of Litton Industries), American, 1973 (c)

Origin

United States of America

Maker

Monroe (a division of Litton Industries)

Accession No

1991.1

Brief Description

vacuum tube, discharge type, by G. A. Crowe, English, 1934

Origin

England

Maker

Crowe, G. A.

Accession No

0989

Brief Description

simple microscope, ‘Naturalist’s Magnifier’, 1810 (c)

Origin

Maker