Telescope (detail)

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probably made in London

Postcard of Telescope (detail).
© National Museums Scotland

Telescope (detail)

This is a detail of a refracting telescope made in 1765, probably by Peter Dollond, a scientific instrument maker based in London.

The detail shows the inscription on the telescope's single brass draw tube. It reads 'PETRUS DOLLOND/ Ann. Dom. 1765/ LONDINIUM'.

In 1758, Dollond's father, John, a Spitalfields weaver, patented his achromatic doublet lens. In 1765, a further improvement was made by Dollond himself using a double-concave flint glass cemented to two double convex lenses of crown glass.

Record details

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Online ID: 000-190-001-032-C
Image Rights Holder: National Museums Scotland
Project: 0098: National Museums Scotland
Project description | View all records in project
Ref: National Museums Scotland  T.1935.53
Date: 1765
Material: Brass (Draw tube)
Mahogany (Tube)
Dimensions: 26.00" closed L x 2.50" D
What: Telescope
Subject: 3. ASTRONOMY, Refracting telescopes (Departmental Classification)
22. PHYSICS, Light (Departmental Classification)
Who: Peter Dollond, London (Telescope maker)
Where: England, London
Description: Refracting telescope, single draw telescope with dark mahogany tube and brass draw tube inscribed 'Petrus Dollond, Ann. Dom. 1765, Londinium'
  • Dollond, Peter, 'An Account of an Improvement made by Mr Peter Dollond in his New Telescope' in Philosophical Transactions 55, part 1 (1765), pp 54-6 
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