How Much Is My Wurlitzer Spinet Piano Worth?

I have a Wurlitzer spinet piano I’m thinking of selling it and I don’t know how much to sell it for. We think that it was manufactured in 1980. The bench has warping from a cofee mug and the piano needs tuning but otherwise it’s in perfect shape. I’d appreciate your advise and help or even web-sites that could help. Thanks

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