Nazgúl Hobbies!

[The Squatter of Amon Rûdh]

Did Khamûl perhaps once work on the Great Westron Railway? Or was that his mate, the Great Westerling?

I believe it was the latter. According to a commentary in the aforementioned volume of the History, one of Khamûl's early jobs for Sauron was the formation of the Lugbúrz, Morgul and Sammath Railway for the transportation of slag to newly conquered regions. In a note scribbled on an old Adnams beer mat, Tolkien remarks "He ventured not into the West, where the gauges were strange."

[ September 19, 2003: Message edited by: The Squatter of Amon Rûdh ]