MKS-13

I inherited several swords and have recently decided to sell a few of them. I would love it if someone could help with translating both sides of this tang. Usually when I see gold inlay I think it is a cutting test, but someone has told me differently. They did not specifically translate the kanji, just said it was not cutting test. I am also curious if anyone here could give me an approximation of reasonable selling price for this item. I do plan to sell this item and wish to be able to give a reasonable guess at what the translation of the tang is. All responses are appreciated. I was so pleased to see many members of this forum that have been of help to others in my position. Thank you in advance. Mandi S.