So this is an old wattmeter I found at a swap meet awhile back. I've googled, but the company Electra Voice doesn't exist anymore, and I couldn't find this model on any other vintage sites, radio or otherwise. It's very cool looking, vaguely military, and the dial makes THE most satisfying click. I'm wondering if it's safe to disassemble it for cleaning and such or if I should be worried about dealing with a corroded battery or something. Anyone ever take something like this apart? I kinda want to turn it into either a wall fixture or hollow it out to make it lighter and make a prop out of it. I'm open to ideas and suggestions.