Thanks for the question! The market for Horace Waters spinet pianos are tough in that spinets are not a piano that students would generally use today. They also are designed with a drop action that once they start failing, they are too costly to repair. The value as an antique is modest, and many purchase them to have an "antique piano" but without an expectation that it will be played. Typically on peer-to-peer sales venues like Craigslist with local delivery (pianos are expensive to move) a value of $150 to $250 can be expected (unless it is of extremely good quality, then perhaps a bit more can be justified, up to $350).
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