Take it to an auction house. If you check www.invaluable.com you may be able to find a specialised dealer. You will be charged on ebay even if it doesnt sell (Repeatedly). If you havent traded on ebay before you may get very low bids as you havent built up a trust rating via the feedback system and people will be wary of its authenticity and quality. Auctioneers will charge more; typically 15% of realised price, but you can put a reserve on it after a free valuation.