Black and white negative of Extrude Hone first machine. Negative missing.

Black and white negative of [presentation] apprentices at De Beers.

Black and white negative of a visitor at EI Company. Negative missing.

Black and white negative spares of a visitor at EI Company Negative missing.

Black and white negative of people at work in EI Company for a special.

Black and white negative of Air Shield Products.

Black and white negatives for Jim Dalton, EI Co.

Black and white negative spares for Jim Dalton, EI Co.

Black and white negative of a capacitor for Callins.

Black and white negative spares of a capacitor for Callins.