DUNE by Frank Herbert Complete Set of 6 Hardcover Mostly Putnam First Editions

DUNE by Frank Herbert, Complete, 6 Book Set. Most are Putnam, First Editions. See details below and in photos. Children of Dune, Putnam, 1976. God Emperor of Dune, Putnam, 1981. Heretics of Dune, Putnam, 1984.