Metal equatorial dial called "à équation" - Lot 242

Lot n° 242
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Estimation :
1200 - 1500 EUR
Metal equatorial dial called "à équation" - Lot 242
Metal equatorial dial called "à équation" Signed GUYOUX and dated 1835 H. 54 cm - W. 39.5 cm - D. 52 cm BP Model invented by Father Guilloux (1793-1869) and developed around 1830. This universal garden sundial is able to indicate the solar, true, local and mean time thanks to an analemma on which an oculus is projected. Four arabesque supports allow the instrument to be set at the latitude of the place. Bibliography: Jean Rieu, Les cadrans solaires de l'Abbé Guyoux, 2014. Expert:: Bruno PETITCOLLOT + 33 (0) 6 09 61 92 18
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