http://www.ebay.com/itm/Hanstone-Bb-Tub ... 43dcc95ba8
....but I'm not totally sure. Could also be an early Chinese copy. The rotor linkages & paddles could have been replaced. But I think the telling point would be if the mpc receiver had "Made in Germany" or "Made in GDR" on it or not. But even if it is a Chinese copy, the price is right
