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I know nothing about steel. All I can say is that steel commonly referred to as stainless steel/rost frei/inox can indeed rust/stain but at an extremely slower rate than other commonly used carbon...

You are welcome. I have come to the conclusion that about the only thing definite you can say about the origins of stainless steel is that it is about 100+ years old. ;)

Bob

Here is an interesting take on who invented stainless steel.

When was stainless steel discovered?-Jaway Steel Corporation

The oldest "production" stainless steel razors that I have seen are the...

I have a stainless steel razor that I believe was made pre WWII. I was lucky enough to pick up a second one too.
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