The series premiered in 1907. Stopped in 1982*.

Initially, the two title characters from this newspaper strip series formed a strange partnership as they had only one thing in common - their devotion to gambling on horses. Augustus Mutt is tall and dimwitted, while Jeff is small and asylum-prone. At times he saw himself as a great boxing prizefighter!
Later on, their interest turned to more general aspects of trying to get rich without too much effort, and Jeff mostly tried to keep up with Mutt's increasingly more desperate schemes.

The initial title of the series was Mr. A. Mutt, but the following year Jeff was added, which caused the retitling to Mutt and Jeff.

* The series was also published as comic books from 1932 to 1982. Smith drew the stories until 1980, when Breisacher took over.