I'm guessing the thing was make by breaking out parts of the silver ingot and then casting the voids with something like an electronic potting compound, so you could do the same again but prepare the crack surface properly this time with an activator so that the resin actually sticks.
I'm guessing the thing was make by breaking out parts of the silver ingot and then casting the voids with something like an electronic potting compound, so you could do the same again but prepare the crack surface properly this time with an activator so that the resin actually sticks.