Hello: I bought this katana advertised as a hand-made WW2 era naval officer's sword on E-bay and would like to know more about it and perhaps authenticate it.
1. What is the translation of the mei (signature) on the nakago (tang)?
2. The tsuba (guard) and two seppa (washers) are marked "12". What does that mean?
3. Does this look like a machine-made or hand-made blade?
4. Was this scabbard type wood with lacquer on the outside, or is the outer layer typically plastic?
The blade does react strongly to magnets.
Thank you for your help.