How do I know what my sicilian cart is worth

i found this link ; and I am really trying to get as much informatiaon as possible in regards to my sicilian cart. and how do I go about selling it? it is incredebly detailed carved and painted. I believe it is from the late 1800. prease any advise. thank you I have put some pics on insintapraiser but no answers tet. it was added feb 8 2012

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