Black and white negative of a Japanese group of VIPs visit to De Beers.

Black and white negative of a Japanese group of VIPs visit to De Beers.

Black and white negative of visitors at the De Beers plant.

Black and white negative of visitors at the De Beers plant.

Black and white negative of visitors at the De Beers plant.

Black and white negative of visitors at the De Beers plant.

Black and white negative of visitors at the De Beers plant.

Black and white negative of visitors at the De Beers plant.

Black and white negative of visitors at the De Beers plant.

Black and white negative of visitors at the De Beers plant.