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Stamps of Windmills in the US

2011 Kansas USA Windmill Stamp

The 2011 Kansas windmill stamp commemorates statehood with one of the most recognizable symbols of the prairie--the American farm windmill. Modern wind turbines are in the background.

The farm windmill, also knows as the "American" windmill or "Chicago mill", made settlement on the semi-arid Great Plains possible. Historian Walter Prescott Webb described the prairies as the land where the cows chop the wood and the wind pumps the water. For what this means, see my book Wind Energy Comes of Age.

Kansas also has seen a substantial increase in the number of commercial wind farms since the turn of the 21st century.


Stamp of Farm Windmill in Texas

One of a series of five windmill stamps issued by the U.S. Postal Service sometime in the 1970s or 1980s. The stamp depicts an American farm windmill and a water storage tank. This type of wind pump is also known as a "Chicago mill" for the region of the U.S. where hundreds of thousands were built during the 19th century.


Stamp of Post Mill in Virginia

One of a series of five windmill stamps issued by the U.S. Postal Service sometime in the 1970s or 1980s. The stamp depicts a post mill built by English settlers in Virginia. The mill is probably the mill at Williamsburg, Virginia which was reconstructed in the 1970s.


Stamp of Stage Windmill in Illinois

One of a series of five windmill stamps issued by the U.S. Postal Service sometime in the 1970s or 1980s.


Stamp of Smock Windmill in Massachusetts

One of a series of five windmill stamps issued by the U.S. Postal Service sometime in the 1970s or 1980s.


Stamp of Tower Mill in Rhode Island

One of a series of five windmill stamps issued by the U.S. Postal Service sometime in the 1970s or 1980s. Note the external yaw wheel for pointing the turbine into the wind. The miller would use an endless chain or rope to turn the wheel which would then orient the cap of the windmill in the direction desired. Also note the the position of the stock or blade spar relative to the lattice work of the blade or sail. The blade is asymmetrical about the stock. Compare this with the blades on the Illinois, Massachusetts, and Virginia stamps.

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