14 - 15 years
The term windmill derives from their use to mill grain. The first windmills appeared in Europe during the 12th century in northwestern France and southern England. At their peak of popularity some windmills were able to produce more than 1500 megawatts of power, a level not reached again until 1988.
Metal Earth models are made from high quality steel sheets. Each model features amazing details with parts cut from one or more 4" square steel sheets. Easy to follow instructions are included with each kit and No glue or Solder required.