1954 Dell Powers Tucker

The Long Loud Silence (1954), originally uploaded by admiral.ironbombs.

1956 Ace Norton

Ace D164a, originally uploaded by uk vintage.

1974 Norway Haars Vonnegut

Kurt Vonnegut: Sirenene på Titan, originally uploaded by svennevenn.

1979 Pocket Podwil Van Vogt

Renaissance by A.E. Van Vogt. Pocket Books 1979. Cover artist Jerome Podwil, originally uploaded by pulpcrush.

1965 Ace Podwil Cummings

Tama of the Light Country by Ray Cummings, originally uploaded by My Love Haunted Heart.

1967 Ace Podwil Coulson

Juanita Coulson - Crisis on Cheiron - Ace Double H-27 - cover artist Jerome Podwil, originally uploaded by Cadwalader Ringgold.

1976 Sphere Wolf

Killerbowl, originally uploaded by NRJP.

1977 Fawcett Carr

Cirque - Terry Carr, originally uploaded by Cadwalader Ringgold.

1963 Lancer Emshwiller

Larry T. Shaw (ed) - Great Science Fiction Adventures (Lancer 1963), originally uploaded by horzel.

1959 Ace Valigursky Norton

Secret of the Lost Race, originally uploaded by McClaverty.

1960 Ace Valigursky Norton

The Sioux Spaceman, originally uploaded by McClaverty.

1974 Ace Ellis Norton

Sioux Spaceman by Andre Norton, originally uploaded by newmexico51.

1959 Ballantine Powers Maine

"Fire Past the Future" by Charles Eric Maine (1959 Ballantine edition); cover by Richard M. Powers., originally uploaded by CoffeeInSpace.

1959 Ballantine Powers Maine

"The Tide Went Out" by Charles Eric Maine (1959), originally uploaded by CoffeeInSpace.

1965 Berkley Powers Kornbluth

Syndic - C.M. Kornbluth, originally uploaded by Cadwalader Ringgold.

Bester

1965 Ace Podwil Chandler

1985 Sphere Goodfellow Zelazny

Bantam Lehr Sheckley

1961 Ace Emshwiller Bulmer