cover art by Graves Gladney
October 1957 issue ~ cover art by Frank Kelly Freas
1959 Hillman paperback – cover art by George Ziel
Los Angeles, September 10, 1956
LAPD detective with night watchman, maintenance man and elevator operator, inspecting a bomb scare at W.M. Garland Building at 117 West 9th Street, Los Angeles, September 10, 1956
April 1953 issue ~ cover art by Howell Dodd
1955 Pennant paperback reissue
pseudonym of Johannes Matthijs Willem Knipscheer
1953 Little Brown hardcover
1955 Pennant paperback reissue
illegible artist’s signature at the right edge of the post
better image than previously posted
