Donating a piano

I have a Kohler & Campbell spinet piano, manufactured in 1963. It is 40" high. I had it appraised online via answering several questions and it was valued at $500-700. It has rarely been played since the 1970s and so has basically been furniture. I had it tuned a few years back, I think the tuning is in OK shape but have not tried it recently. 

Because I've had it for so long, I'd like to give it away to a good home rather than sell it...