Paris, Durand, 1752.
12mo (160x95 mm), 24-lxx-(10)-222-(32) pages and 1 folding plate. binding : Contemporary full sheep, spine gilt in six compartments. Corners worn. Some foxings, one more intense on page 195. Little tear in the margin of the plates.
references: PMM [199 (first ed. in english. 1751): "the most important scientific book of eighteenth-century America"], Wheeler Gift [367d : "This Philadelphia letters were translated by M. Alibard and others to experiment with pointed conductors"].
Price : 1700 €