Cleveland's early pulp works (including crime and western) were published together in a single numbered series. The 'Cleveland Western' logo did not appear until number 533, and crime novels continued appeared in the same series as westerns until number 596. The Cleveland Western label became firmly entrenched with number 600, after which all further volumes were westerns.
This series includes both crime and westerns. For westerns published in the Cleveland Westerns series (beginning with number 533), see Cleveland Western.