blueing

I would expect the firing pin, firing pin spring retainer and the hold-open latch would all be unblued/white steel. The spring that holds the hold open latch is sort of fire-blue heat treated. The ejector is strawed on the outer surface but don't think it shows on the inside surface due to lack of polishing on inside surface. The mag well inner surfaces (inside of the grip straps) are white/unblued. Most stuff inside the luger is white and the outside is blued and strawed.