@SFOMuseum Twitter Posts This is SFO Museum's archive of the @SFOMuseum Twitter account.
In 1902, he advertised single-cylinder motorcycles, engines, and casting kits under the brand Hercules, and the next year he was winning races on a powerful new twin-cylinder machine. In 1904, Curtiss made a twin-cylinder Hercules capable of an impressive 5 to 50 miles-per-hour.. This tweet was posted on March 19, 2021.