French-American actor Charles Boyer signed a three picture contract with Universal in January 1942. During that period he had numerous occasions to sit in Jack Pierce's makeup chair. The photo shown above with the message, "To my friend Jack Pierce" is just one of the many photos like this where actors and actresses thanked Pierce for his work.
Note that the photo is copyrighted 1941. It's likely he was negotiating his contract with Universal late in the year and this publicity portrait taken during that time.
