Accession No

0983

Brief Description

simple microscope, dissecting, circa 1800

Origin

Maker

Accession No

2988

Brief Description

discharge tube, 1950 (c)

Origin

Maker

Accession No

1924

Brief Description

Norrenberg polariscope, by Elliott Brothers, English, 4/4 19th Century

Origin

England; London; 449 Strand

Maker

Elliott Brothers

Accession No

4529.045A

Brief Description

TI-30 electronic pocket calculator, by Texas Instruments, Italian, 1976 (c)

Origin

Italy

Maker

Texas Instruments

Accession No

0123

Brief Description

universal equinoctial dial, by W. Newman and Company, Indian, 4/4 19th Century

Origin

India; Calcutta

Maker

W. Newman and Company

Accession No

1638

Brief Description

horodictical horary quadrant, purported to be 18th century, but actually a modern c. 1970 fake

Origin

England [?]

Maker

fake, unknown maker

Accession No

0193

Brief Description

diptych dial; German; 1/2 19th century

Origin

Germany

Maker

Accession No

0484

Brief Description

diffraction grating, reflecting, Rowland-type, by John A. Brashear, U.S.A., 1891

Origin

U.S.A.; Massachussetts; Baltimore; and U.S.A.; Pennsylvania; Allegheny

Maker

Brashear, John A. [polished and figured] Theodore C. Schneider [ruled using Rowland's engine]

Accession No

4529.047A

Brief Description

SR-50 electronic pocket calculator, by Texas Instruments, Dutch, 1974 (c)

Origin

Holland (Netherlands)

Maker

Texas Instruments

Accession No

3493

Brief Description

zograstrope print, Daumont

Origin

Paris

Maker

Daumont