On the mezzanine floor, that you can only reach by stairs, of the Science Museum in the “Making of the Modern World” hall you can find these hand crafted beauties. The Science Museum also has a wonderful collection of beautiful antique watches.
This one shows the fire tubes that carry the hot gases from the fire box through the boiler. It was by this innovation that it was possible to transfer a great deal of heat quickly to the surrounding water, hence create and maintain a large volume of high pressure steam to drive the locomotive. The steam rises to the bubble on the top and a throttle controls the steam flow to the cylinders/pistons beneath.
And, a Rolls Royce
And, a Wooden Ship
And, on the Ground Floor
Happy traveling. :-).