Yes, good catch. Thank you RobinK for the tip about rust. And your informative and common-sense reply from a local, on-the-ground perspective.
I do tend to view these tools as objects of art. Razors and (and maybe firearms too) can be used as 3D steel maps or sculptures of technology over the past 200+ years. They were built as tools to do a job, but also came to symbolize the era and country they came from. Mechanical watches have a similar vibe in that they are just tools, but very personal, and incorporate a lot of period technology and style in doing their job.