I had one of these in last year, the Stuart Mk814 setam generating set - instant electric power in a handy parachute-drop crate, just add water and small sticks. Sounds completely barmy, I couldn't resist steaming the last one that came in - they actually work surprisingly well. Complete with all pipework, original tin of oil, piston valve engine with generator and ingenious variable stroke feed pump, boiler etc.
Weight approx 100 pounds crated
Crate 28 x 15 x 15 inches