Unlike the earlier three examples there were changes to the newly numbered The Faro Kid. The same cover art is used but there is a redesign of the front cover, spine and back cover. In fact this is technically a new edition and not a new printing as the page breaks are different resulting in two fewer pages (126 vs 124). The earlier number had two identical printings in December 1950 and May 1952.
The three "printings" also bulk differently - 8mm for the first, 10mm for the second and 7mm for the third. The 1957 edition doesn't mention the 1950 and 1952 printings.
Harlequin 89 - December 1950 & May 1952
Harlequin 89 back
Harlequin 386 - April 1957
Harlequin 386 back