Inscription J.T.H 1939. Inscription of JER with partial date. This inscription is found above one of the slate workbenches within a now derelict workshop at Dorothea. Several similar inscriptions were found in the same workshop, as well as others around the quarry. This shows that during the early 20th century the practice of carving ones name into their work station was popular, and may give insight into the quarry workers social culture and individual identity.