Thanks for your question!
This piano would have been made in 1877 based on the serial you provided. Old pianos like this aren't worth too much because of the extreme wear both mechanically and cosmetically they have faced over the years. The value can increase if a piano has been restored or rebuilt, to improve the condition. Based on your description of condition and considering the used piano market, I would recommend a selling range of $100-$400 depending on actual condition. Best wishes!
Please select a positive rating before leaving--this is how the site knows your appraisal is complete and the only way I'm credited for completing it. Thank you!