Rare 1960's Koestler Harmophone electric air organ, in good condition. Imagine a Magnus chord organ, but with a full keybed instead of the chord buttons ! Motor and air pump in excellent working condition and all of the keys play and are in tune. Volume slider works well. Some signs of use throughout, with a few small cracks in the plastic body, but the case and latches are in good condition and are all still functional. It has also been modified with an output jack, which functions well an opens up a whole world of possibilities for external processing.