1960 Sloane hardcover, first edition
1960 Casell
1962 Cardinal reissue – better image than previously posted
cover art by James Hill
1963 Pan reissue – cover art by J. Oval
The Nylon Pirates x 7
December 1933 issue ~ cover art by Don Hewitt
July 18, 1918 issue ~ cover art by Hibbard V.B. Kline
Assignment -The Girl in the Gondola x 5
1964 paperback original – cover art by Robert McGinnis
1979 German edition – cover art by Robert McGinnis
Shell Scott x 3
pseudonym of Richard S. Prather
1952 Graphic paperback original – better image than previously posted
reissued as The Scrambled Yeggs
undated Fawcett reissue – cover art by Robert McGinnis
Atlee to Keene
1966 Fawcett paperback original
cover art by Jack Thurston
brother of CIA magician David Atlee Philips
repurposed for 1967 German edition of Circus of Death, 1965
SMB Noir 