We work 10 to 12 hours a day on our Antique Web Mall, and our Antique Business in general, We just don't have the time. At one time we did do this for everyone who asked to the best of our ability. We understand it comes with the territory, when one has a popular site. Go a good large books store, or antique show, or a good library and with a little work you will find out what you need to know.
Most good bookstores have a nice section on antiques and collectibles.