hindsite

2 things 1. here is the nakago-jiri requested 2. what does John Stuart's post mean, and where do I go from here to learn about my blade?

So I am totally new to the world of nihonto and I have a few questions. First, I was just told that I have a masashige blade. There is some tarnish and rust on the blade from fingerprints I think. I need to know what I need to do to prevent the rust from getting worse. I have heard about cleaning kits, but is that really enough to stop or reverse the rust? The other major concern that I have is that the saya is decrepit. My father told me that it broke a number of years ago (like 20 or 30) and that he glued it back together. Obviously I don't think that acceptable, so I was wondering if there were recommendations on a how to procure a shira-saya for proper blade storage?

Hello all, I am new to the world of Nihonto. I received this blade from my grandfather and I have no idea what the mei says. I have tried to translate it, and have spent many hours VERY frustrated. I even drafted a friend of mine who grew up in Japan to help and she couldn't read it. Any help you guys could provide would be most beneficial as this blade does have tarnish/rust from fingerprints, and I want to get it professionally polished. Im not going to do that though until I know what I have.