paperback – Page 15

1961 Bantam paperback

better image than previously posted

1964 Pyramid paperback original

cover art attributed to Robert Maguire, other thoughts are Rudy Nappi

2nd with series character John Keith, agent of A.P.E.

written by Mick Anglo

better image than previously posted

1951 Dell novella

cover art by Maurice Thomas

cover art by Mitchell Hooks

better image than previously posted

1930 Cosmopolitan hardcover

cover art by Robert McGinnis

better image than previously posted

1954 Dell paperback original

cover art by George Erickson

1960 reissue with modified cover art by Barye Phillips

pseudonym of Joseph Chadwick

first book under this pen name

cover art by Ray Johnson?

better image than previously posted