1920, Genuine #1

1.) The end of the ā€œJā€ points horizontal.
2.) Shading line in the sword is thick.
3.) Two dots representing eyes are farther apart.

Forgery of #1

1.) The end of the ā€œJā€ points downward
2.) Shading line in the sword is thin.
3.) Two dots representing eyes are close together.