I am a new member and have a ton of things in my collection I hope to post at various times to see if anyone can identify or explain them. I have had this grenade for some time, but it puzzles me. It is the M55 Lusikka body, but not with the original fuze issued with it. The fuze is the modern JVA 1634. I assume everyone will jump up and say the same thing I would, that somebody just put a new fuze in an old body, but that is not the case. I have photos of the wooden crate the grenade came from with the fuzes packed in styrofoam on one layer and the grenade bodies on the bottom layer. Can anyone explain why Finland would assemble these two items at this point in time? Thanks!