Not sure if its original. The philips head screws and bolts seem a bit suspect. Most photos show carriage style bolts. The women I bought it from picked it up at an estate sale, down state Illinois. However coincidently this was where the original Roller Derby Skates factory was located.
Homage to the planks of yesteryear. Thanks and Praise to the Urethane Gods!
“The Disposable Skateboard Bible” is a good place to check if you want to track down any of these gems and is a great coffee table book. Our friends at Quimby’s stock it regularly.