@SFOMuseum Instagram Posts This is SFO Museum's archive of the @SFOMuseum Instagram account. from May 10, 2021

Excelsior was one of the “Big Three” American motorcycle brands during the 1910s, along with rivals Harley-Davidson and Indian. This image was posted on May 10, 2021. #earlyamericanmotorcycles #motorcycle #vintagemotorcycle