I decided to bid on this Dishwasher Rack, and I won the auction. I thought it would be cool to have, because when I was in high school (1970) I had a slightly older Kenmore "Six Hundred" Model 587.65510, S/N: 24415 (I do not know how to decode the age). It had the exact same rack. I am planning on putting the rack inside one of my GE dishwashers that I can fit with a Plexiglas lid to watch the top rack turning. Theoretically it should work.
Mike