The rosewood desk Johnny Carson sat behind for countless celebrity interviews is among several "Tonight Show" items headed for the auction block.
Other memorabilia up for grabs next Saturday at Heritage Galleries & Auctioneers in Dallas: a studio clock, a 3-foot-square section of flooring Carson stood on to deliver his monologue from August 1985 to May 1992, and audio recordings he made in 1949 at the University of Nebraska for his senior thesis.
