Yes, that's the one! Hey, yours really is bigger than mine!

That fuse is incredible! Hmm, I wonder of which acquaintance you speak?
I love the markings on the outside of yours. Are they some sort of arsenal marking? They really highlight the piece. For that matter, on Barry's examples (thanks for adding these, Vandoo!) we see rather elaborate decorations on those 10th-12 c. grenades. Seems odd to produce such artistic expression on an item meant to be quickly destroyed? I first thought they were just to add a better gripping surface, but now I'm not so sure.