Often I get asked about stripping down fuzes, to see whats inside. I would strongly discourage this practice as often, these fuzes being over 70 years old, can be damaged or coated in bitumen. Stripping them down doesn't really achieve much!
Below are some pictures of a fuze, that was recently stripped down, the exterior did not look too bad, some original paint remained, sadly stripping it down showed that damp had penetrated the case and had caused the switch block to crumble.