There should be a plate on the underside that gives the patent date which would be just a little earlier than the date the Victrola was made. The records are worth next to nothing I'm afraid. But they are fun to play! I love my old Victrola and if functional, they seem to sell for about $200-ish to $400-ish on Craigslist. The type with the large horn can go for more. FYI, you can still get Victorla needles online, Ebay is a good place to get them.