That was one of my first thoughts, but this had quite a build up of grime on it when I bought it suggesting it was'nt new at all and I've examined it very closely for a mark without joy a number of times.I'll have another look in the daylight for a mark, what exactly might I be missing?
Most of the RB pieces I've seen have had a much more superficial finish than this? Could you post a pic of one of yours for comparison?
Many thanks,
M.