This is a Stuart Model 10-V precision miniature working steam engine.  6 1/4" tall, 3 1/16" diameter X 9/16" wide flywheel.  Cast iron, cast brass, and machined steel construction.  Great workmanship and attention to detail and I'm sure it will run when coupled to a boiler or you could run it on compressed air. Photo 2, Photo 3, Photo 4, Photo 5, Photo 6, Photo 7, Photo 8, Photo 9, Photo 10, Photo 11, Photo 12 Price:  $250.00