Cool! I have an old Starbird boom stand that will soon be used to light a large table in our soon to be finished gut reno'd attic.LOL, I have one of those huge Atlas booms on wheels, that I use for things like hanging a trouble light while working on something in the garage, or when painting walls in the house.
This one is similar to mine (the base on mine is a bit different as mine is older than this one), I need to get it out of storage and make some good photos of it.
The yoke for the boom is about 5' up and the boom has an AC cord running through it with a connector on the end of it; this was for the "hair light" when we did portraits in the studio, or as a general overhead for product photography such as this:
Photograph Copyright © Jeffrey P. Scott 2007 All rights reserved