These four socket fixtures are some of the more interesting types I have seen. Most are basically the same design some with a switch and outlet plug and some with just a socket. Left to right- Circle F (Freeman Electric Co. trenton N.J.) this has a sheild shaped outlet on it. Kinda neat compared to the plain ones. My favorite socket cluster. Marked Atkinson Pat pend. Was sold by MOE Bridges Light Co. Fort Wis. This star shaped 5-way socket is really neat and was under patent 2,680,891 Jun 8, 1954 by Alan O'Boutelle. These are pretty pricey too. Sometimes you can get the whole assembly with the glass shade but I like just the socket. Next is a Paulding octogon shaped fixture (J.I.Paulding New Bedford Mass), Last is marked E.H.F.E Co. Paddle switch fixture. I have no idea what the company is. The base was made by Circle F Co. so maybe a relation there somewhere.