This ramshackle vehicle is popularly known as the Brass Coffin by our intrepid forces. It has been used by insurgent forces who can produce no better armored vehicle. Powered by steam, the engine drives a single external piston geared to the rear axle for propulsion. The two large front wheels are independently mounted on a transverse axle, and serve little mechanical purpose other than giving the vehicle some trench-crossing ability.
The forward armour is enhanced with a thick glacis plate, angled to help shed the impact of shell and bullet. The side armour is not so thick, but has proven to be proof against smallarms fire. While the metalwork looks similar to brass, it is in fact a very advanced alloy, rustproof and lightweight, yet tough as armourplate.
While quite well-armoured, the Brass Coffin carries no heavy armaments. It relies on troops firing from within it through the slits you see there. Also, many of its gears are externally mounted, which makes its propulsion system vulnerable to the overwhelming firepower of disciplined Regulars.
[Editor's Note: This is the Brass Coffin from Ramshackle Games. They are almost sold out, according to their blog. So if you want one... now would be the time to get after it! Photos taken from Lead Bones Blog, the Ramshackle Games company blog.]