Earth Orbit DIY STEM Construction Kit, Educational Toy narwhal 1940 as the keel was

1940 as the keel was laid at the Norfolk Navy Yard in Portsmouth

and a wide array of accessories

Finished dimensions are ~26

but that gas has long been replaced with minerals of all kinds

Classic and colorful UFO model

Earth Orbit DIY STEM Construction Kit, Educational Toy narwhal 1940 as the keel wasThis wooden STEM construction kit builds a battery operated Earth Orbit simulator! The gears recreate how the Earth, Moon, and Sun orbit in the stars. This science kit is perfect for museums, gift shops, after school programs and summer camps, and more! Kit includes a full color instruction booklet and necessary tools. Comes in a peggable retail box for easy presentation!