LOCKE (John). A Philosophical Essay on Human Understanding. Amsterdam, Pierre Mortier 1742. In-4, last critical edition revised by Coste, decorated with a portrait engraved by François-Morellon La Cave. Bound in full calf, spine decorated with 5 nerves. (slight wear in the margins of the first and last leaves with minor worm work, binding rubbed, spine scratched, slight lack at the top cap, leather peeling off the back covers)