
Anyway… what year is my newest partner from, about? Is there something I should know about or take into consideration while I repair it?

Im not 100% certain, i can only report my experiences which is that the black like you have seem to be the most stable. For these thin films, they seem to shrink and maybe cause some corrosion to the handle beneath where they're seated, but dont seem to cause the same degradation to the blade steel. They may not even release the nitric acid fumes, or maybe just less since there's not much material there. Either way i haven't noticed them to be dangerous to their neighbors.
Thank you. It’s a nice big, solid knife which I may use on occasion. I guess I’ll keep it separate, just in case.ThatWeirdKnifeGuy wrote: ↑Sun Jun 09, 2024 1:20 pmIm not 100% certain, i can only report my experiences which is that the black like you have seem to be the most stable. For these thin films, they seem to shrink and maybe cause some corrosion to the handle beneath where they're seated, but dont seem to cause the same degradation to the blade steel. They may not even release the nitric acid fumes, or maybe just less since there's not much material there. Either way i haven't noticed them to be dangerous to their neighbors.
Edward Skihands wrote: ↑Mon May 27, 2024 9:31 am I have been restoring the knife by chemically removing rust and gently sanded the blade with p240 paper.