BRAND NEW SMITHSONIAN MOTOR-WORKS BUILD WORKING MODEL 4 CYLINDER ENGINE AGES 8+
BUILD A WORKING MODEL OF A 4-CYLINDER ENGINE. VALVES ROCK, SPARK PLUGS FIRE & PISTONS DRIVE THE CRANKSHAFT. IN FACTORY BOX. MY APOLOGIES FOR ANY BLURRY PHOTOS. OLD AGE SUCKS! THIS IS A FIXED PRICE ITEM .