It's part of a set, each one is a different annodised colour. They weren't particularly expensive but stand out so harder to loseHi Mark,
Mineral - Lol, I had this down as one of my options for mineral, though my oil can is about 40 years old and looks it (and it leaks), but my spanner would have been far less interesting. I don't think I've ever seen a purple spanner before, where did you get it? .