These are original ZZ42 Schumine fuses with all parts except for the shipping cap and percussion cap. For some reason these appear to have been deactivated by having the firing pin ground flush. Likely 10 seconds mounted in a drill with a file could restore enough of a point to make them function again, some would likely still work as is. These were lake found and are fairly well preserved. Some of the metal clips and firing pins are pitted. They still assemble and display well.