Found the other two of them and some new clues. Looks like I was close to testing them by plugging stuff in but never made it that far. Got one dismantled though it seems.
I did find which way is up and the second toggle only control power to one of five switches on the inside. The five switches are controlled by the "Synchron" which has five disk that rotate around with all but two of them have differnt amounts cut off the disc so the switch is on or off. A little confusing but some of the internal switches have power hooked up so they are on no matter if their switch is on or off, but the main toggle is on. The main disc (#1 I guess) has just a single v notch cut out the others have more like and inch or 1/2 removed. If you move the dial so the main disc switch is not in the v then the counter starts and the disco ball starts twirling and the disco music plays until it reaches the v again. Thus the torturing apparatus.
Looks like I can spin the individual discs to set when they are on off. Just need to figure out if I want to build a steam room w/ the disco ball or a torture chamber. Might come up with something else too.
BrianG these must be pretty old huh? There must have something smaller that can synchronize three outlets more efficeintly. This looks like a good puzzle to try and figure out when something turns on if the other is on or not on, but that depends on if this toggle is turned on and etc etc...
I couldn't find anything on the Jenkco Inc company.