Restoration of old steel blade knives / Restore rusted old knives

Hello friends !
Today while cleaning the warehouse, I saw a very old and rusty knife. I am sure it was forgotten from my grandfather's time, until I saw it. I am very happy to find an antique item. And for me, it's more than that. I immediately used all that I had to restore.
With my enthusiasm, I wore a new outfit, shiny for it.
And of course I'm happy to share this with you.
thank you !
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