Eidograph

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An eidograph is an brass instrument for copying, reducing and enlarging illustrations. This example was made around 1860, probably by Alexander Adie & Son, scientific instrument makers based in Edinburgh.

30" copying eidograph in brass with brass-cased lead-weighted base, lead counter weight and fitted case, signed by Adie and Son, Edinburgh, c. 1860

The eidograph was an improved version of the simple pantograph which was invented in 1821 by William Wallace, Professor of Mathematics at Edinburgh University.

Record details

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• Online ID: 000-100-102-767-C
• Image Rights Holder: National Museums Scotland
• Project: National Museums Scotland
  Project description   View all records in project
• Ref: National Museums Scotland  T.1980.178
• Date: Around 1860
  c. 1860
  
• Material: Brass, brass-cased lead. Inscription: Adie & Son Edinburgh
  Eidograph / box
  
• Dimensions: 785 mm
  
• What: Eidograph / box
  
• Subject:
• Who: Adie and Son, Edinburgh (Maker)
  Arthur Frank Collection of Scottish Scientific Instruments
  
• Where: Scotland, Midlothian, Edinburgh
  
• Event:
• Description:
• References:
  • Clarke, T.N., Morrison-Low, A.D. & Simpson, A.D.C. Brass & glass scientific instrument making workshops in Scotland as illustrated by instruments from the Arthur Frank Collection at the Royal Museum of Scotland. Edinburgh: NMS, 1989. pp 49,50 
  • Simpson, A.D.C. 'Brewster's Society of Arts and the Pantograph Dispute'. Book of the Old Edinburgh Club. New Series 1 (1991), pp 47-73 
  • T.N. Clarke, A.D. Morrison-Low and A.D.C. Simpson (1989): "Brass and Glass 
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