Thanks to philcom55 from comicsuk forum
http://www.comicsuk.co.uk/Forum/viewtopic.php?f=127&t=3350&start=60
'Game Gus - He's Game for any Game' first appeared in Wizard No 1551 dated Nov 5th 1955 and finally appeared in No 1654 dated Oct 26th 1957. Thanks to Kashgar
