Robert A. Heinlein 7 Book Signet Pb Lot

Starship Troopers Nov. 1961 1st printing

The Door Into Summer March 1959 1st printing

Methuselah's Children Jan. 1960 1st printing

Revolt in 2100 April 1955 1st printing

Green Hills of Earth June 1958 3rd printing

Beyond this Horizon Dec. 1960 1st printing

The Day After Tomorrow Sept. 1951 1st printing