Thank you Grey. All the information shared has given me an excellent starting point to research further. I will be traveling for the couple of weeks so hopefully have a little time to begin.
Picked this up at a militaria show in Ohio this weekend. First Japanese sword I have purchased and would like to learn more about it. Was told it's an old blade (MEI is Morimitsu?), obviously handle rebuilt but no idea on date, was carried in WW2 by Japanese Officer. Any help on confirming swordsmith and other details would be much appreciated.