|F.E. Wentworth-Sheilds & W.S. Gray. Reinforced Concrete Piling. London: Concrete Publications, Ltd., 1938.|
So, who's the guy with the motorcycle centre back?
On this particular day, some guy took a ride on his bike and ended up visiting the docks and getting captured in this photo. He couldn't have known that his presence would have been preserved forever, and, decades later, shared widely around the world.