Not sure what this is, but we've had it for a couple of generations

My wife's mother inherited this from her mother, and it's been handed down to us. We've had it for about 25 years. It has ornate inlaid wood as well as mother of perl inlaid. It also has a stamped number (pretty good sized font) stamped on the underside of the table top, which says 747. We're just curious where we can find more information on it. It came from the Davenport, IA area. Thank you.