Griffin was involved in the Polperro art scene from the 1940s and is best known for a series of postcards which he produced and sold in the late 1960s and early 1970s. These record Polperro harbour scenes. He exhibited occasionally with the East Cornwall Society of Artists, and for a while he ran a gallery in the village, at the junction of Lansallos Street and Landaviddy Lane. He was described as a cultured man, a lifetime communist and a skilled odd job man.