UK Collectors, Any true date for Anglo-American Gum Sports Gallery Set?
 

Hi all!

Just picked up this oddball (trimmed) UK Anglo-American Chewing Gum Sports Gallery wrapper of the Globetrotters.

A real date is hard to locate. The best I can find is possibly 1957?

Does anyone have a true idea as to the issue date on this one?

https://i.ebayimg.com/00/s/ODIxWDcxN...5l8uPb/$_3.JPG