File:Digital Derby Auto Raceway by Tomy, Model No. 7034, Takes 2 "C" Batteries, Made in Japan, Copyright 1978 (Handheld Electro-Mechanical Game).jpg - Wikimedia Commons
Digital Derby from TOMY (1978) | Toy Tales
Playing Tomy Digital Derby Auto Raceway | Retro gaming, Old games, Tomy
1975 Vintage Tomy Pocket Derby Game Hong Kong Tommy Magnetic | eBay