
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