Cambridge: The Belknap Press of Harvard University Press, 1968. Hardcover. xxiv, 548p., b&w exhibit photography throughout with large line-maps, endsheet maps also, first edition 11x8 inch maroon buckram boards gilt in coated dj. Top and fore edges foxed, margins of endpapers and first blank also foxed, jacket is somewhat soiled with a small hole at the head. An else-clean copy with no mustiness, quite sound, no ownership or other marks.