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

Smithsonian Motor Works 4-Cylinder Engine Model Kit

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

Smithsonian Motor Works Stem 4-Cylinder Engine Model Battery Operated New

BRAND NEW Smithsonian Motor 4 Cylinder Engine Stem Kit

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

Smithsonian Motor-Works Blue STEM Building Kit 2022 4 Cylinder Engine Open Box

Smithsonian Motor Works Working 4 Cylinder Engine Model Kit #49013 PARTS SEALED