Underneath the bell-pull there was a notice which said:
These notices had been written by Christopher Robin, who was the only one in the forest who could spell; for Owl, wise though he was in many ways, able to read and write and spell his own name WOL, yet somehow went all the pieces over delicate words like MEASLES AND BUTTEREDTOAST.
Taken from "In which Eeyore loses a Tail and Pooh finds One"
Below are pictures of Owl