1941 Morrow hardcover
4th in the Bertha Cool & Donald Lam series
cover art by George A. Frederiksen/ mapback by Ruth Belew
1951 British Pocket paperback edition
cover art by Roland Davies
1959 Panther edition from Britain – cover art by Ley Kenton
1952. Dell reissue – cover art by Carl Bobertz
1957 Dell reissue – cover illustration by by Push-Pin Studios
April 1962 Dell reissue – cover art by Harry Bennett
1967 Dell reissue – cover art by Robert Abbett
May 1948 issue – cover art by Rudolph Belarski
better image than previously posted
cover art repurposed for 1949 Popular Library reissue
better image than previously posted
cover art by George Erickson
better image than previously posted
1956 Midnight Thriller from Frederick Muller Ltd., Britain
cover art by Harry Bishop
1948 Dutton hardcover – a Guilt Edged Selection
1951 Boardman hardcover – cover art by Denis McLoughlin
1952 Boardman softcover – cover art by Denis McLoughlin
better image than previously posted
1958 Corgi reissue in Britain
1959 Crest edition
cover art by Richard Powers
cover art by Hector Garrido
1931 Collins hardcover in the UK, out the same year from Doubleday in the US.
this is the later abridged softcover edition
SMB Noir 
