The most traditional socket arrangement is seen below. There are three bulb sockets spaced evenly off of a ball. Hubbell did a lot of the electrical work for Handel. Some sockets are marked Hubbell and some are marked Handel. Others are marked as both.
There are plenty of other lamp socket varieties. Sometimes the socket will have places for five bulbs, other times it will only have two bulb sockets. When authenticating a lamp, these checks are all just pieces of the puzzle.
