Does anyone have archival footage of the wine industry of South Africa?

I’m currently busy with my Masters in Visual Anthropology at Münster University. Part of the curriculum is to create a short documentary. I’m looking for archival footage about the wine industry of South Africa, particularly that of farmers or farm workers to add to my documentary. It is not for commercial use, but purely for academic purposes. Can anyone point me in the right direction?

Adele Changuion - changuion.adele@gmail.com