Are all decorated Fenton pieces signed by the artist?
No. Fenton had a decoration department in the early 1900’s until the depression of the 1930’s, but on those early pieces, you will not find a artists signature. In 1968, a decoration department again was formed, but it was not really a requirement for the decorators to sign the piece. So you might find some decorated pieces from that time period signed, and others unsigned. But by the early to mid 70’s, almost all decorated pieces were being signed by the artist, and it has become a Fenton trademark to this day.