Antique Chippendale table and chairs

Found this table and chairs on Craigslist. The story that I was told was it was found. It was foound by a theater company and used in a theater production. They found it in the basement of the current theater building that used to be the federal court house. The building dates back to 1770. Now, for the kicker. We live in Florida basements are very rare and old. I did not realize this was an antique and started staining it. That is why it is shiny. I would really appreciate any insight.

Poor