1972
A worn pickaxe head, close as a still life.
The company
Cominco Ltd. treated Sullivan Mine ore from Kimberley, B.C., at the Trail smelter and operated Pine Point Mine in the Northwest Territories.
Cominco Annual Report 1972, p. 10
That year
Sullivan Mine ore production was 1,925,000 tons grading 10.8% combined zinc-lead; output was refined at Trail after a July strike at the mine.
Cominco Annual Report 1972, p. 10