Grimbledon Down = Bill Tidy, loved his cartoon style (looks 'thrown down on the paper' but clever details) & his sense of Humour. (He was a 'Scouser' so good match.)
Quick search found this which is typical 'Bill Tidy' Humour, if you don't know him.
Do you remember the 'Fosdyke Saga' in the Daily Mirror (Spit)
I caught it now & then when reading the discarded papers while waiting in the Barbers for my Dad.
Something else for the 'Misc search' list.