Mine is a type 97. It looks identical to this, including the metal cap on the fuse assembly. The scary thing about it, I found out later from one of our PD bomb techs, THE JAPANESE USED PICERIC ACID? BASED EXPLOSIVE THAT BECOMES EXTRTEMELY UNSTABLE WITH AGE. Opening one of unknown origin now is a BAD idea. Mine of course was empty from when my dad brought it back. I will take some pics of the map and stuff when I get a chance.