Archival objects in this container: Aerial view of Blue Diamond Mine, undated Aerial view of Blue Diamond Mine, undated Aerial view of Blue Diamond Mine, undated Structures at the mine, undated Structures at the mine, undated Trucks, undated Copy of award certificate presented to James Hardie Gypsum Mines, undated Machinery, undated Machinery, undated Worker next to mining equipment, undated Worker using equipment, undated Employees in front of a safety performance sign, approximately 1970 Employees in front of a safety performance sign, approximately 1971 Employees in front of a safety performance sign, approximately 1968 Aerial view of Blue Diamond Mine and surrounding landscape, undated View of mine and electrical lines, undated Aerial view of Blue Diamond Mine and surrounding landscape, undated Group of employees, undated Workers, undated Workers, undated Truck pouring rocks into a chute, undated Aerial view of Blue Diamond Mine and surrounding landscape, undated Aerial view of Blue Diamond Mine and surrounding landscape, undated Aerial view of Blue Diamond Mine and surrounding landscape, undated Workers in front of a rock wall, approximately 1960
