Manufactured in 1929. A packet of information will be provided with the theremin, including the electrical tests, coil data measurements, a reproduction of the original RCA Theremin Instruction Manual, and more. The Theremin was fully serviced and tuned. See the listing for more details.
Auction is online, with pre-bidding open now. It's a live auction that starts October 1st, 1pm CDT. Starting bid is $500.