CHESTERFIELD, Philip Dormer Stanhope, Earl of. Letters...to his Son. London: For J. Dodsley, 1774. 2 volumes. 4° (292 x 223mm.). Engraved portrait, half-title, errata leaf bound at the end of volume I, p.55 of volume I in the first state, the Supplement to the Letters bound at the end of volume II. Contemporary tree calf, flat spines ornately gilt, green and red lettering pieces (hinges extensively repaired). Andrews Harrison (contemporary signature on title-pages); William Holmes Brookfield (armorial bookplate). FIRST EDITIONS Rothschild 596 & 598; Gulick 2 & 28. -- HARDWICKE, Philip Yorke, Earl of. Athenian Letters. London: For T. Cadell Jun. and W. Davies, 1798. 2 volumes. 4° (279 x 215mm.). Engraved portraits, plates and folding maps (some offsetting). Contemporary russia gilt, marbled edges. Provenance: Christopher Turnor (armorial bookplate).