1960 Newsstand Library paperback original
cover art by Robert Bonfils
Author: Seattle Mystery Bookshop
We are a bookshop.
January 1951 issue
1967 McFadden reissue – cover art by Jerry Podwil
1948 McKay release in the US, this the later McFadden softcover
released in Australia as Invincible, as by Edward Ronns
cover art by Jerry Podwil
November 1943 issue
1950 Gold Medal paperback original – cover art by C.C.Beall
1953 Lion paperback original
cover art by Reginald Heade
November 1967 paperback original – cover art by Robert Bonfils
1950 Quality comic – cover art by Will Eisner
1959 Signet paperback original – cover art by Robert Schulz
pseudonym of Lawrence Lariar
1959 Signet paperback original
cover art by Robert Schulz
