The Dempster Annu-Oiled windpump was manufactured by the Dempster Mill Manufacturing Company and was first introduced in 1922. The Dempster was imported and distributed by Mangold Brothers of Port Elizabeth and Malcomess of East London.
|Dempster photographed near De Rust. Taken down in 2010.||Dempster photographed near Calvinia Hotel.||Dempster on farm Humansdal near Van Wyksvlei.||Dempster on farm Suurberg between Willowmore and Aberdeen.||Dempster photographed at Kalahari Farmstall near Mata-Mata in the Kgalagadi.|
|Dempster photographed in the Loeriesfontein windpump museum.|