1949 mailbox advertisement for Midget Auto Grand Prix at Balboa Stadium, the last race of the '49 season. Opened in 1915, racing began at the facility, then known as City Stadium, with a midget car on March 7, 1938. The midgets continued to grow in popularity until World War II halted racing. Following the war, huge crowds turned out as Balboa Stadium was the Wednesday stop on the United Racing Association's Red Circuit. (Photo by Golowka)