The price can very considerably. Is it actually a production cel? How is it matted and framed? What is the size? Who is the character and what is the pose? Is it a plain white background or is there a litho behuind? Is it a single cel or a set-up of multiple cels?
If you can post a photo, possibly with something such as a ruler in the picture to give an idea of scale that would help.
The price could range from a few dollars up into the thousands.
I think I asked this once some time ago but never got a response. I figured since you guys are talking about cells you may be able to help me. I have two older disney cells one is production original from Pinocchio they are in bad need of repair and I've called around but no one that I've called seems to know where I should be taking them. Do you know who I can contact to have them restored and help preserve them??