Photograph of the Vickers A1E1 Independent at the Bovington Tank Museum. It is designed with five turrets and had a crew of eight, understandably only one was ever made and it was never used in combat.
It's a donation bubble. you put in a coin and in rolls in a circle down a funnel until it reaches the center. It mesmerizes little kids so much that parents are often parted with all of their spare change, all of which usually goes to a good cause.