Max Rittenberg, Punch, Volume 147, Issue 3826… (19th and 20th century)
“ Is the Prince kept prisoner on a trawler sweeping the North Sea for mines? Has he escaped in the German submarine which ventured up the Thames as far as the lower end of Fleet Street? Or is he interned in the searchlight apparatus at Charing Cross to insure it against attack by Zeppelins? ”
