Mystery page

Just read Tom and Jerry #247 (Gold Key, 1969) and in the back of that book this page appears out of the blue:

Looks like the final page of a longer story.
No title page. This is what we get. Odd, eh?

I guess this is a reprint from a mid fifties issue? Would be nice to read the full story. If you know where it was published, feel free to leave a comment. :-)