This was all that was written on the envelope:
Where should it be delivered?
(Saw this somewhere ages ago. The original source has been lost to time.)
I think it should be delivered to
John Underwood
Who lives
As the rebus says
John under Wood and over England
Apparently that's a true story, about a real piece of mail.
You can stop wondering where you saw it before, here's a source: :-)
The Telegraph: Baffling addresses that get delivered correctly
(Spoiler; the link also contains the answer.)
UNDELIVERABLEand return it to the sender. – J.R. Dec 28 '17 at 19:35