This gun is listed by an auction house as having the original bluing on the plate, trigger guard, etc. It certainly does appear to have some remaining case color on the frame,. What I'm wondering is how to make sense of the engraving which seems to be cut into the bluing. I don't remember seeing another vintage gun with the engraving done after the bluing, which makes me wonder if this is a reblue and re-engrave. The bluing also looks a little too fresh for a gun of this vintage, which I think dates to the first decade of the 20th century.