Smithsonian Motor-Works STEM Working 4 Cylinder Blue Engine Building Kit Sealed

Smithsonian Motor-Works STEM 49013 4-Cylinder Engine Model Kit opened, but new

Smithsonian Motor-Works Gas Engine Model Kit New In Box - Ages 8+

Smithsonian Motor-Working Gas Engine Model Kit (#49013) New Open Box - Ages 8+

Smithsonian Motor-Works STEM Working 4 Cylinder Blue Engine PARTS ONLY

BRAND NEW Smithsonian Motor 4 Cylinder Engine Stem Kit

Smithsonian Motor-Works Gas Engine Model Kit New In Box - Ages 8+

Smithsonian Motor-Works Gas Engine Model Kit (#49013) New In Box - Ages 8+