[ROY (William)].

Lot 179
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Estimation :
200 - 300 EUR
[ROY (William)].
Description of the operations carried out in England to determine the respective positions of the Greenwich and Paris observatories. Paris, Firmin Didot, De l'Imprimerie de Didot fils aîné, 1791. 3 parts in one volume in-4, half aubergine basane, smooth spine decorated (Binding from the first half of the 19th century). First French edition, translated by the engineer Gaspard de Prony (1755-1839), decorated with 26 folding plates and tables, and a folding map giving an overview of the arrangement of the triangles . Bottom hinge split lengthwise, but the plate remains attached.
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