Vintage line drawing of a small pig. Measuring only 119 pixels by 90 pixels, this little fellow could be used as a rubber stamp.
The Zebra and the Wishing Fairy contained a number of wonderful animal drawings by the artist Dugald Stewart Walker (1883-1937).
This image is copyright free and in the public domain anywhere that extends copyrights 70 years after death or at least 120 years after publication when the original illustrator is unknown.