Lead from Different Countries
The famous Borrowdale mine in England was the first source of graphite for pencils, but other sources around the world have since been found. This material, along with its processing, is so critical to quality that some pencils announce the source of the graphite or lead —
The famous Alibert mine of Siberia is represented.
It’s ironic that the English pencil boasts of having Spanish Graphite. Meanwhile, another pencil (probably from Austria) has British Graphite.