Details: This poster shows a windmill against a blue sky. It is a metal windpump designed to pump water from a well.
A windmill is a machine that is powered by the energy of the wind. It is designed to convert the energy of the wind into more useful forms using rotating blades or sails. The term also refers to the structure it is commonly built on. In much of Europe, windmills served originally to grind grain (hence the mill derivation), though later applications included pumping water and, more recently, generation of electricity. A windpump is a type of windmill used for pumping water from a well or draining land. Windpumps are used extensively in Southern Africa and Australia and on farms and ranches in the central plains of the United States. They are particularly economical in remote sites distant from electric power distribution.
This poster is usually printed with a thin white edge border.