Dual output DC power supply. Well worth $15 if it works and you need a dual output 0-35VDC @1.5A power supply. A boat anchor if you have no use for it (which, if you didn't know the purpose, could be the case).
Looks like a heck of a power supply. I'd buy that for 15 bucks in a heartbeat. Even if it doesn't work its probably fixable, or at the very least its got enough parts and chassis to be worth the money.
These old power supplies pop up at hamfests and radio swap meets all the time. The tube ones are at least good for parts, but that one is probably solid state and there’s not a lot you can pull off it. I quit picking them up at pretty much any price.
have to be careful with solvents on plastic lenses, some plastics react poorly and go cloudy. Some go badly with alcohol, some go badly with petroleum based.