Okan Posted January 9, 2023 Report Posted January 9, 2023 Hi fellas, Can you please take a look at the shinogi ji and tell me if you know how this veins would form? due to age? (it's an old blade) Quote
PNSSHOGUN Posted January 10, 2023 Report Posted January 10, 2023 It could be the remains of spider rust, or possibly very faint Muneyaki. 1 1 Quote
Ken-Hawaii Posted January 10, 2023 Report Posted January 10, 2023 I think John is right, the remains of spider rust. If it polishes out, you'll have your answer. 1 1 Quote
rematron Posted January 10, 2023 Report Posted January 10, 2023 Are you discussing the small black/dark grey pattern in the shinogi? Quote
Okan Posted January 10, 2023 Author Report Posted January 10, 2023 On 1/10/2023 at 4:46 PM, rematron said: Are you discussing the small black/dark grey pattern in the shinogi? Expand Yes and also the greyish veins around it Quote
Alex A Posted January 10, 2023 Report Posted January 10, 2023 If it were Spider rust, would avoid. Was told an horror story once where it just kept coming back after polish. Quote
Matsunoki Posted January 10, 2023 Report Posted January 10, 2023 It certainly looks like corrosion of some sort or maybe a stain. Doesn’t look deep. Doesn’t really look like spider rust as that always shows up “rust orange” (or black if neutralised). Does look as if it is creeping across the blade. Does it exist along the mune? Does it exist all along the blade? Are there pits within it? Just wonder if the inner saya has been contaminated with something that has crept across the blade from it resting on the mune. Something acidic? Quote
Tensho Posted January 10, 2023 Report Posted January 10, 2023 Looks like spider rust to me. This is one of my Yari. OPs photos look black and white so won't show "orange" Is there any "natural" light photos of the blade? Quote
DoTanuki yokai Posted January 12, 2023 Report Posted January 12, 2023 http://www.ksky.ne.jp/~sumie99/sword7.html 1 Quote
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