[Ron Wood]

I agree with Dwight that the gun falls within the range that a Type I safety could be correct. By looking at the photos of the barrel markings and GERMANY stamp on the front of the frame, under magnification there is some hint of a halo around the markings. The clean edges on the gun and the crispness of the markings would lead me to guess that some uninformed individual in the past gave the gun a liberal application of cold blue. This would perhaps explain the strawed parts being blued and the stamped markings having a vestigial halo.
Other than the possible blue "enhancement" the gun appears proper and original in my opinion.