Thanks for the question! The good news is that you have a gorgeous organ, but the bad news is that the market for late 19th/early 20th century organs is very small. At auction, other Hinners reed pump organs can sell for less than $100 (see: https://new.liveauctioneers.com/item/2395614_hinners-victorian-oak-pump-organ). I would try listing it through church message boards and through peer-to-peer venues like Craigslist for $250 to 450, or so. You may be able to donate it to a church for a tax deduction as well. Here is one that has been offered on eBay for some time at the $475 level, see also: http://www.ebay.com/itm/Vintage-Oak-Hinners-Organ-Co-/301458728934?hash=item46305727e6:g:1GcAAOSw6aVUndkf - but unfortunately, the value for these is largely decorative as most organists want a newer model with "all the stops" (so to speak).
Following-up since you reviewed your answer yet elected to not take further action! Please take a little time to give me a POSITIVE RATING NOW SO THAT I AM CREDITED BY JA for my knowledge, time and effort.
Please do not rate me down because of system difficulty.
Please let me know if you have difficulty with the site's rating system. To rate me, you should see 5 stars near my answer. 5 stars and bonus gives me the best rating.
This will close out the question and allow me to assist others, as I assisted you.
Thanks for viewing the answer I prepared; following-up one final time to see if you need anything further since you did not rate the answer. If you found this helpful, please use the rating system in the upper corner of the question to rate my professionalism as it's the sold way experts get credit for assisting people and it can close the question so I can help others as I helped you.