pseudonym of Frederick C. Davis
1960 Doubleday hardcover, a Crime Club selection, this the later UK paperback
1962 Panther reissue
Tag: panther paperback
George Ziel x 2
1957 Avon paperback original
cover art by George Ziel altered slightly for –
1959 Panther from Britain (1957 Signet reissue in the US)
1959 UK Panther reissue
Chiriacka x 2
better image than previously posted
cover art by Ernest Chiriacka
1962 Panther mass market, UK paperback
better image than previously posted
SMB Noir 