Back Skateboard - Roller Derby Skateboard The first mass-produced skateboard was Roller Derby Skate Company's “Skate Board” (without the “#10”). Roller Derby made this skateboard in their La Mirada, CA factory, and
Roller Derby Deluxe Series Skateboard Mr. Bear, Multi, 31" x 8" : Amazon.ca: Sports & Outdoors
Roller Derby Skateboard - Wikipedia
Roller Derby #10 Skateboard | National Museum of American History