Instrument

Description

Circular brass double instrument, with stereographic projection for use at latitude 51.5 degrees north and ecliptic circle calibrated by month, designed by William Oughtred and made by Elias Allen, London, 1648

Museum reference

T.2004.723

Collection

History of Science

Object name

Instrument

Production information

Allen, Elias, c. 1588 - 1653, Manufacturer
London, England, Northern Europe
Oughtred, William, 1574 - 1660, Designer

Date

1648

Materials

Brass

Exhibitions

• Discoveries Redisplay, 2015

• Power of Ten: Inventing Logarithms (21 Mar 2014 - 31 Aug 2014)
  National Museum of Scotland

References

A.D. Morrison-Low, ‘Recent Acquisition by the National Museums of Scotland: William Oughtred’s horizontal instrument and 'Circles of Proportion' by Elias Allen, London, 1648’, Bulletin of the Scientific Instrument Society, No 85 (2005), 20-22