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Similar steel isn't the same steel. Pizza made anywhere but New York doesn't taste like pizza from New York, apples grown and bought in Seattle taste nothing like the apple I could get in Las Vegas....

Well using the weight of the bottle would be more consistant than the weight of the razor, which changes drastically from Sheffield to Swedish for example. Assuming the bottle is empty of course....

Disclaimer: I'm a geek.

I came up with an interesting experiment for someone with access to high level microscopy which might help elucidate some of the differences between steels from Solingen,...