Black and white negative of a Hard Metals conference at the Diamond Club.

Black and white negative of a Hard Metals conference at the Diamond Club.

Black and white negative of a Hard Metals conference at the Diamond Club.

Black and white negative of a Hard Metals conference at the Diamond Club.

Black and white negative of De Beers progress shots of the new building.

Black and white negative of De Beers progress shots of the new building.

Black and white negative of the Shannon Diamond Club House new building. Negative missing.

Black and white negative spares of Paul Twomey at the school of [electrical] engineering for De Beers.

Black and white negative of EI Co. directors touring the factory at Shannon.

Black and white negative of EI Co. directors touring the factory at Shannon.