Hardcovers, royal octavos, complete in two volumes. Dark blue lettered in gold. Volume I i – xxiii, 1-627pp., Volume II 629-1310pp. First edition, first printing [both volumes]. “In total, the Guide lists more than 30,000 works of art, which in turn are organized into 205 main subject entries, arranged alphabetically from Achilles to Zues.” A monumental work of scholarship. No previous ownership marks. Volume II shows mild evidence of having been read, with slight concavity to upper spine, else as new. A very clean, square, unmarked set. Near fine. N.B. This is a heavy set, extra postage will be required.