JF It would be a fair bet to be Wandsworth, but without a clear ID it would be folly to have it as a given. "Postmarks can make fools of us all" A double strike does not help either, at one point the blob at the top had me thinking there was part of a "squared circle" impression.
Postmark Wales LLANFAIRFECHAN SO CARNARVONSHIRE ("Little St Mary's Parish") SO= Sorting Office
Similar to an earlier hammer, double ring circa 1903 It had Month / Day This hammer has Day / Month
Queen's real "degeneracy" lay in playing at Sun City, but that's not really Daily Mail territory. I don't own any British pop records, and haven't bought one since the mid-'60s, so I'll leave the prog to you!