Single Cylinder compressed air engine of my design.  Includes a poppet style valve and uniflow exhaust
	Horizontal compressed air engine.  Also features a poppet style valve and when finished, will operate as a hit n miss engine with a flywheel mounted governor system much like the old farm engines.
	Stuart 10H reciprocating steam engine
	Finger Treadle Engine
	Vertical oscillating steam engine.  Includes an epicyclic gear train on the connecting rod which makes the flywheel spin twice for each vertical stroke.
	Electric solenoid engine.  The base contains an 18 volt step down transformer and a bridge rectifier to convert the current to DC.
	Two small compressed air engines from the book "Elmer's Engines"  Both have a 3/8" bore, the one on the left is a single cylinder, the one on the right is a twin cylinder.  In both engines, a flat on the crankshaft acts as the valving mechanism.
	Hit n Miss internal combustion engine of my design.  It has a 1" bore and about a 1.25" stroke.  A motorcycle coil and rechargeable batteries are contained in the wooden base.
	Simple oscillating compressed air engine.
	Small Horizontal compressed air engine.  The valving system is in the crankshaft  and air is ported to the cylinder through the horizontal beam connecting the crank to the cylinder.
	This is a model of a John Deere engine that runs on compressed air.  It features poppet style overhead valves and uniflow exhaust ports at the base of the cylinders.
	Stirling engine of my design.  Engine stands about 12" high.
	This is a 4 stroke, twin cylinder engine I'm building from an antique Ritter Dental air compressor.   The bore is 1" and the strok is 1.5".  Since the pistons are 180 degrees apart, the engine should sound like an old John Deere twin engine.