
1960 Gold Medal paperback original
cover art by Charles Binger
pseudonym of Robert Lee Martin
better image than previously posted

1960 Gold Medal paperback original
cover art by Charles Binger
pseudonym of Robert Lee Martin
better image than previously posted

pseudonym of Lee Roberts
1954 Dodd Mead hardcover, this the later 1955 Bantam paperback
cover art by Mitchell Hooks

pseudonym of Robert (Lee) Martin
1959 Dodd Mead hardcover, this the later 1960 Crest reissue
cover art by Robert McGinnis
better image than previously posted