North Treskerby Mine
A one-time productive copper mine at Redruth, between 1859 and 1882 it produced 19,270 tons of copper ore, 150 tons of tin oxide (“black tin”) and small amounts of other minerals. It was finally abandoned about 1890.
The illustration appeared on 7 known labels. The 35-contents label was on sale between September 1965 and October 1966.