Hey Ron,
Those are the ebay photos, Keith has not been able to play with this yet, that makes me feel better.
Keith, here is a photo of the fuse on the SIPE grenade, it is left had threads into the body and the cap has right hand threads, so that the fuse will not be screwed out when the cap is removed.
I like the way you can view the fragmentation plates in the new M1912, the grenade I have was opened with a can opener to remove the explosive, and I was able to remove two of the frag plates for viewing. It is interesting that the fragments are ¼ vershok in size. This is an obsolete Russian measuring system.
Best
Gus