you have a nice officer sword and it was meant to be used in battle, I'm sure its got a cutting edge that's sharp, most likely it was oil tempered and put into the war machine, sometimes the tech's signed them and sometimes not. the mounts were late war and not much care or time was taken, the shims...cartoons are they old i.e. from the 40S?... or do you think they were added later. In guntos you have to remember the officers had to buy them so it was what he or his family could pay. lot of different grades of mounts relating to cost. F&Gs book states the stamp is rare to find, so id cherish it as a WW 11 Relic for which it is. btw a fare price for gunto sword nowdays.