SS Officer Nickle Plated Luger

I have found the same to be true the plexiglass grips. I have also seen it used on some clearly US GI applications (1911 grips, M1 Garand stock insets etc..) I can not disagree with the other comments made in this thread regarding nickle plated Lugers but it is interesting how many of these that I have seen that the owner has insisted that they were taked off the German with that finish. Many also claim that this is a factory finish which I can easily dismiss. Has anyone ever seen any solid evidence that any German officer/solider has their sidearm nickle plated?