Very cool!! I did not know G.E. made such a beast. When I first opened it, I thought "Ahh, the Singer" but a closer look revealed what it really is. I'm guessing mid 1960s??
I think it's the late '50s. I tried to post a question if anyone in the club had one, it is my favorite GE upright, since I have such good luck lately, maybe one will end up with me.