An unusual mid 19th Century watchmakers brass 'pipe' engine

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An unusual mid 19th Century watchmakers brass 'pipe' engine
being an inverted single acting engine single oscillating cylinder engine with overtype crankshaft, flywheel -- 5/8in. dia. and 'V' belt pulley, mounted on two decoratively turned tapered columns, the base, with knurled rim forming the top of the cylindrical soldered brass 'boiler' -- 2in. (5.1cm.) high. Brass container with cap

First partially fill 'boiler' with hot water, replace engine and put it in your pipe and smoke it. When the water boils the engine runs!