Divided object-glass micrometer by George Dollond

Made:
1821-1857 in London
maker:
George Dollond
Divided object-glass micrometer by George Dollond, London

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Divided object-glass micrometer by George Dollond, London
Science Museum Group
© The Board of Trustees of the Science Museum

Divided object-glass micrometer by George Dollond, London, part of refracting telescope (1987-722) by Simms (RAS No.30, Sheepshanks No.4) Presented to the Royal Astronomical Society in 1857 by Miss Ann Sheepshanks sister of the Rev. Sheepshanks. Later in 1957 given to the British Astronomical Association.

Details

Category:
Astronomy
Object Number:
1987-851
Materials:
case, wood, brass and optics, glass
Measurements:
Case: 120 x 140 x 120 mm
type:
heliometer and instrument component
credit:
Sotheby's (New Bond St)

Parts

Case for divided object-glass micrometer by Dollond

Case for divided object-glass micrometer by Dollond

Case for divided object-glass micrometer by Dollond, London, part of refracting telescope (1987-722) by Simms (RAS No.30, Sheepshanks No.4)

Measurements:
overall: 120 x 280 x 135 mm
Materials:
painted pine
Object Number:
1987-851 Pt1
type:
instrument case