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R18 1.9cc Horizontal Four-Stroke Gasoline Engine Model is a working horizontal single-cylinder engine with a large flywheel, exposed valve gear, fuel ..
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$440.99 $904.03
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TECHING DM229 1886 Three-Wheel Automobile Kit 430+PCS is a 430-plus-piece motorized metal model inspired by the landmark 1886 three-wheel automobile, ..
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$284.19 $582.59
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TECHING DM601 Working Pumpjack Model Kit 219PCS is a 219-piece motorized pumping-unit assembly that exposes the crank, walking beam and reciprocating ..
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$146.99 $301.33
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Explore working industrial and historic mechanisms, including early engine layouts, pumpjacks and vehicle systems. Compare drive systems, visible linkages, scale and operating requirements.