185 gasoline engine with Dynamo

Microcosm H09 Mini Hoglet 4-Stroke Single-Cylinder Gas Motorcycle Engine Model

Beam steam engine

Stuart Turner Model Steam Engine Beam Castings Kit

ENGINEDIY 2.1cc Mini Hoglet H09 Single Cylinder Gasoline Engine Model

Mini Gasoline Engine Model - Metal Build, Water-Cooled, Functional

OKMO M93 6CC Horizontal Water-Cooled Gasoline Speed-Adjustable Hit & Miss Engine

Vintage clear acrylic steam engine model kit