First off a one or two basics of what not to do, Never hold the blade with bare fingers, oils and acids in finger prints cause long turn damage your blade is out of polish and it not going to do much harm now but be sure to wipe off any prints and take care not to place the tip on anything even carpet, the damage to the tip is hard to reverse. It looks to me a interesting find, the Tsuba and tsuka look old and it may hold a even older blade. Next step is to remove the Tsuka ..it has a small wooden peg after drifting it out the handle should slide off to show us the nakago then we can go from there when you post more pix of the mei.