John Cage. 'I-VI (Charles Eliot Northern Lectures in 1988-1989.).' Hardcover. 1990. Fine. Dust Jacket. First Edition. Signed. 452pp. ISBN: 0674440072. Harvard University Press. Cambridge, MA. Jacket condition: In a fine condition.. Language: English. A fine deluxe signed edition, Gray cloth stamped in silver on front board and spine; dust jacket. Housed in a two-piece matching cloth box with two 60-minute audio cassettes in cases, One cassette documents Cage's reading of Mesostic IV, the other a Q&A section from one of his lectures. Signed by Cage. 11.75 x 9 x 2.5 inches. Inventory #15027.