Accession No

2500

Brief Description

spinthariscope, W. S. Stanley and Company Ltd., English, 1920 (c)

Origin

England; London

Maker

W. S. Stanley and Company Ltd.

Class

optical

Earliest Date

1920

Latest Date

1920

Inscription Date

Material

metal (brass); glass

Dimensions

length 35mm; diameter 25mm

Special Collection

Provenance

Purchased from K.M. Sawbridge, London, England.

Inscription

‘SPINTHARISCOPE W. CROOKE 1903
W.S. STANLEY & CO Ltd LONDON BRIDGE S.E.’

Description Notes

Brass spinthariscope; device for counting alpha particle emission, invented by William Crookes in 1903. Two parts:
1. Brass cylinder containing screen and pointer moved by small brass circle with milled edge.
2. Magnifying glass in brass mount with milled edge, screwing into 1.

Condition: good.

References

Events