Tokyo 1st Arsenal Sword is up for auction HERE.

Full disclosure: the seller is my nephew; I assisted him with the description, but I have no skin in this game. I am not bidding on this and will NOT shill for him.

He incorrectly listed the curvature as 2.5" ... I told him he needs to correct it and gave him instructions.

I now see there is an additional stamp, [hei/soldier] above the "stacked cannonballs" mark.