A friendly looking frog perches out of the water on a rock in this vintage black and white frog picture. It is in the public domain and can be used as-is or fully colorized. It was drawn by Jessie Wilcox Smith (1863-1935) and included in the 1916 work The Water Babies.
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.