I found a very old D-specification handset (test set), as shown on Paul-F's site at
http://www.paul-f.com/weHandsets.html#1004. Though I don't see any dates inside, the AT&T spec 4566 (Feb 1926) describes it. So 85 years old, anyway. Neat!
I originally bought it for the 2AB dial. In fact, I considered pulling out the dial for use on another set, and tossing the rest of it. But now that I have my hands on it, I think I'll clean it up and display it as it is.
The thing works perfectly, but is quite grubby. To my ear, the dial is not only grubby but a little slow, so I'll send it off to Steve Hilz. I'll probably take the cords off and give them a wash in Woolite. I'm not sure how to handle the body. It appears to be plain unpainted steel (perhaps galvanized?), and has a lot of scrapes, dirt, and some corrosion. Any thoughts? Can I buff it up with a wire brush? Sand it? I don't plan to remove all the scrapes and gouges, but I'd like a finish closer to the original. It appears that it will come apart in numerous pieces, so maybe the dishwasher is a first step for the metal parts.
At $40, I don't know if this qualifies for a find-of-the-month, but I'm happy with it.
Bill