I bought a signed Robert Hoppe lithograph (Nocturnes) more than twenty years ago for $500 and would like to sell it. It is a beautiful lithograph (matted and framed) but I just don't have the decor to go with it. If anyone knows how I can find out how much it is worth today and how to go about selling it, I would appreciate it. Please email me at licoricelinda@yahoo.com if you have any information.
