Career
He moved to the United States around 1925 and settled in Hollywood, California, working for the Foster and Kleiser Company, which produced billboards. During the 1930s, he developed a reputation as a designer specializing in billboards, and he designed many of these for American corporations. About 1940, Armitage began a series of "pretty girl" paintings for the calendar market.
While not strictly pin-ups, these works were very reminiscent of the work of Gil Elvgren.
Armitage"s pretty girls were well received in both the United States and England.