World's Smallest Working Model Train

World’s smallest working model train set measures just 1/8 x 1/4 of an inch.

At 1-35200 scale to the real thing, the five-carriage train travels around an oval route including ride through a tunnel.

Created by New Jersey model train enthusiast David Smith, the model was built using nothing more fancy than a craft knife and a steady hand.

Powered by a standard two-inch-long rotating motor head and carved out of mouldable plastic, the model train cost Mr Smith just $10 to make.

Telegraph