This was the first auto-drip maker I knew. My sister gave a 12-cup model to my parents back in the early 70's. Even with your basic canned coffee, everyone was amazed with how much better it tasted than the stuff from the Corningware electric percolator.
I don't know if you can even find the type of flat disc filters that this machine requires anymore. They also came out with a "Dial-a-Brew" basket with adjustable settings later on.
I'm pretty sure there still might be a complete machine at my mom's house somewhere, and she also has the separate matching hotplate and an extra caraffe or two to keep a pot warm while you brew another.
My sister owns what seems to be a rare item, an automatic Chemex that appears to have borrowed the Norelco design, except of course there is no basket, just the paper cone in the caraffe top, and it has more of a shower head type of outlet for the water to make sure all grounds get wet.