A good challenge to the designer/illustrator this, the use of pictures, letters of the alphabet and numbers to make words and sentences. See Tony Augarde's excellent The Oxford Guide to Word Games, OUP Oxford NY 1984, Chapter 9. "The Rebus".
02 A rebus
print by Cajetan - Geiger, 27 x 38cms German c1830.
03 Mary Kendal Lee, illustrator of Nicholas Thomas, The Naughty Kitten