I got two helmets from Java today, one is a regular looking T90 but the other one was just weird; I'm thinking it could be either civvie or one of the pre T90 hemets. However, it's pretty heavy (about as heavy/slightly heavier than a hikishop T90 repro with the liner and whole spiel) and seems to be made of steel unlike the civvie ones I've handled. Plus it's from Java. The cockade has been added after the fact. What could it be?
And yes, the inside is rather blue.