Accession No

3836

Brief Description

compound microscope, possibly achromatic, by Ernst Leitz, German, 4/4 19th century

Origin

Germany; Wetzlar

Maker

Ernst Leitz R. and J. Beck Ltd. [one objective] Watson [one objective]

Accession No

2112

Brief Description

small induction coil Ruhmkorff type by Newton and Co., 1sy 1/4 20th century

Origin

3 Fleet Street; London; England

Maker

Newton and Co.

Accession No

2934

Brief Description

sextant, by Lilley and Son, English, 1840 (c)

Origin

England; London

Maker

Lilley and Son

Accession No

3552

Brief Description

black and white engraving of Abraham Sharp

Origin

Maker

Vertue. G.

Accession No

4030

Brief Description

synchronous motor for use with tracing desk (visual observing) with Duddell oscillographs, by Cambridge Scientific Instrument Company Ltd., English, c.1903

Origin

England; Cambridge

Maker

Cambridge Scientific Instrument Company Ltd.

Accession No

2376

Brief Description

vacuum tube for radiation experiments, 1875-1900

Origin

Maker

Accession No

2604

Brief Description

epidiascope, by J. Duboscq, French, 1870 (c)

Origin

France; Paris

Maker

Duboscq, J.

Accession No

6520

Brief Description

Anita 810 electronic pocket calculator, by Sumlock Anita Ltd. (Rockwell), English, 1973-1975

Origin

England; Uxbridge

Maker

Sumlock Anita Ltd. [division of Rockwell International]

Accession No

2833

Brief Description

protractor, by W. and S. Jones, English, 1800 (c)

Origin

England; London

Maker

W. and S. Jones

Accession No

2316

Brief Description

pair of aide-memoires for assisting with problems of spherical trigonometry, two brass discs with volvelles, tentatively attributed to John Seller, English, c. 1700

Origin

England; London; Wapping [based on tentative attribution]

Maker

Seller, John (AKA Sellar, John) [tentative attribution]