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file U (Stack)Farey, John, 1791-1851
Description of an instrument for describing ellipses
Invented and made by John Farey, Jun. Photocopy of the instruction booklet accompanying a Farey elipsograph which was sold at Christie's South Kensington on October 4, 1995. Presented by Professor G. L'E. Turner
[1995-76]
1995