paperback – Page 90

1958 Gold Medal reissue – cover art by Barye Phillips

reissue of his 1950 debut novel

3rd with ex-pro football player turned private eye Brock Callahan

1955 Scribner hardcover as Excelsior

1966 reissue

European edition

cover art by Saul Levine

1934 Macaulay hardcover

1959 Pyramid reissue with spectacular cover art by Robert Maguire

pseudonym of Herman Hoffman Birney

two books with amateur archeologist Jason Burr

1947 Random House hardcover

cover art uncredited by woman is modeled on Robert McGinnis’ work

pseudonym of Lee Borden

1957 Signet paperback original

cover art uncredited but looks like James Meese?

1958 Gold Medal paperback original

better image than previously posted