I found this bad boy today, and was going to walk on by, but I had to press a key. I felt the unmistakeable buckling spring, and decided to buy it.
These are solid 1-piece IBM keys with almost no wear. The secondary legends are a beautiful green, and are typewriter markings rather than computer keyboard.
If anyone is interested in buying the entire unit, I will entertain selling it as a whole, or just the key set. I bought it with the intention of harvesting the keys and using them myself in a retro setup, but make me an offer I can't refuse, and it is yours.
It is a nice old piece and would probably work with a computer through a parallel port, although I am not exactly sure how.