This Moog Modular was originally owned by Gershon Kingsley and played at the January 1969 performance of the Moog Quartet. Over the years, it was also owned by Ken Bichel and has had numerous additional modules installed.
The Analog Lab in NYC has restored this piece to beautiful playing condition and the unit can be heard in all its glory in this video*. No additional effects were added.
This piece of Musical History is also for sale on eBay, so check it out!