Boiler Front Face

Image used on a steampunk boiler for robotics competition run by a non-profit organization dedicated to inspiring people's interest in science and technology.  Full game can be found by looking up FIRST Steamworks.
Credit to: 
Hjoranna for the brass texture 
nixie04 for the dial
wojtar-stock for the steel texture
FantastyStock for the knobs
Random-Acts for the On/Off Switch and the tank
AscendedArts for the rivet brushes