Almost any local antiques auctioneer will give you a free valuation and tell you what it is. (Auctioneers obviously hope that you'll sell through them but the vast majority will spare you some time anyway. I once got to see one of the experts from the Antiques Roadshow, for a detailed appraisal of some items I had, simply by walking into Bonham's Auction Rooms in London. No queuing, no fee, no obligation and an expert opinion instantly).
However if you're hoping for someone on here to give you some information you'll need to provide a photo. You can upload a picture to this site
http://tinypic.com/
copy the last link offered to you and then paste it here. If it's not clear from your photo, please tell us the size as well. (If there are any marks on the base, please provide a second photo as well, so that we can see them).