It all depends. I you want a great desk with a lot a space you can dance on, it is priceless. However if you are selling it not so much maybe all cleaned up you are looking at $50 – $100 depending on where you are. The price will increase if you have a great story to go along with it. People are always looking for ways to have a part of history, even if it is not their history, or part of important history.
Good luck