Many years ago, when I was working for Club 99, I saw a 78rpm record which had 3 sets of grooves on it, and, depending on where you placed the stylus at the outer edge, you would get one of three selections, but you'd never know which selection you would get. I think it was a Homokord. Does anyone have one of those they can spare? I would hope to buy it. I need it as part of an exhibition of vintage sound media and sound equipment.
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