Black and white negative of Expo 75 stands.

Black and white negative of Expo 75 stands.

Black and white negative of Mr Thompson on a visit to Expo 75.

Black and white negative of Mr Thompson on a visit to Expo 75.

Black and white negative of Mr Thompson on a visit to Expo 75.

Black and white negative of Mr Thompson on a visit to Expo 75.

Black and white negative spares of Mr Thompson on a visit to Expo 75.

Black and white negative of Mr Thompson on a visit to Expo 75.

Black and white negative of Mr Thompson on a visit to Expo 75.

Black and white negative of Mr Thompson on a visit to Expo 75.