[jayoungs]

Thanks for the good info fellas. I've researched a bit more and determined it's a 1951 GE model 515-F. Interesting feature of it -- there's an extra outlet on the back of the chassis where another appliance can be plugged, e.g. a lamp. This outlet is controlled by the alarm function so you could, for instance, plug in a lamp and when the alarm sounded the lamp comes on. Pretty innovative for then, I think. I've found two pics -- one with mother-of-pearl type finish around the clock face, another with shiny gold. Gold makes more sense with the thumb dial, but mine has the other. I'm going to try the needle test out of curiousity -- it sure feels like bakelite. In the end, guess it makes no difference.