Huh, I've never seen that one before. I don't know about England specifically but it probably is from Europe. If that's the case then dating it by the style of manufacture is difficult, as they...
In Search of ... Stout 7up signs marked with visible dates from 1940 or earlier
[ This one is marked 10-41 ]
And here's my favorite one of all ... [ Also marked with 9-41 ]
It almost looks like a state button face design from the civil war. I am not positive though.
I finally found the origin of the Bluegrass bottle. exhistory.org/wikilex/bleich-bottling-company
And, yes, the Stout Sign Company made 8 bubble 7up signs. But I can't find one that has a date on it. However, of the hundreds of Stout 7up signs I've looked at, the majority of those made after 1941...