via this auction
"Here is something that you really do not see very often. The Polyfusion Polyphonic keyboard controller model #2058 ! This was used with Polyfusion modulars and can be used to get a modular to respond polyphonically. It is missing the "break out box" that normally came with them (see the picture in the advertisement) but this will be very useful to any one who has a polyfusion modular and wants a back up keyboard or who is patient enough to find the missing part. It should not be hard to find since the synth community is so well connected these days because of the net. I hated looking for parts in the 90's!
If you are into the early days of electronic music this is an item that may interest you. I rarely see polyfusion items for sale. The unit is in great shape with only minor wear. All metal and wood construction for the case makes a very sturdy and attractive instrument.
What you see in the pictures is what you get. One very rare Polyfusion keyboard controller..."
