The best way to get an accurate value of an item is to see what someone will pay for it, look it up in a pricing guide - or get a professional appraisal by an experienced antique dealer.
There are lots of great pricing guides on the market for any type of antique you are interested in. They do not usually reflect regional differences, but they are a good starting point in determining if your item is worth more or less than $100.
For items that a book tells you are worth under $100, you probably don't want to pay for an appraisal. For items that you think are worth over $100, a professional appraisal is a good idea - for insuring the item or for selling it.
PLEASE NOTE: We do not provide free appraisals or education via email. It is very difficult to evaluate & appraise items without actually seeing the items.