Reading P7sa back to a C1

[toptrain]

Wayne , and Sumpter. thanks for the help. So the big pipes with their stuff are water ejectors to the boiler. and handle some kind of overflow. Most likely steam. The leavers for the fireman and engineer are for releasing, blowing off excess steam thro the overflow. Well I am probably wrong. i just have to make something that looks like that stuff. The things under the seat do look like a way of raising the seat for a better view for the engineer. it looks like a nice cushion and a piston for raising and lowering the seat. Wayne the big round reverse Handel. How did it work. I know it moved a cable. Was it just use for a mechanical advantage to overcome the restriction of pushing or pulling the reversing slide valve above the cylinders in and out. Is there a photo or drawing showing how this circle ( wheel handle) mounted in front of the engineer.
Frank - - toptrain