The Defiance Oilomatic windpump was manufactured by the Butler Company of Butler, Indiana. The Defiance was distributed in South Africa by George North and Son of Durban. Earlier models of the Butler made windpumps were open capped with gears greased through individual nipples.
|Defiance Oilomatic at 24 Zahn street Carnavon.||Defiance Oilomatic near Douglas where the Vaal river joins the Orange river.||Defiance Oilomatic near Koster.||Defiance Oilomatic between Vosburg and Pampoenpoort.||Defiance Oilomatic on farm Vetrivier in district Smithfield.|
|Defiance Oilomatic close up. Photographed in Loeriesfontein windpump museum.||Butler Oilomatic photographed in the Loeriesfontein windpump museum.|