Gold Key 10144-503 - 1960s

I don't have a date for this particular issue, but the 12¢ cover price gives us a clue that it is in the 1960s, probably between 1962 and 1969.

Cover is essentially the same as the Dell Junior Treasury, but for the change in the name of the publisher to Gold Key and the large title banner.  Page count has been reduced to the standard 36-page format, so there was some fairly serious editing going on here.  Another tough comic to find in good condition.