I mean you are welcome to do some research as well, but so far, I’ve done a lot of searching, as I said I found results on Silver and Garlic, but I can’t find anything that predates 1922 in which vampires seem to have any kind actual death. There’s a few notes of vampires that are non powered normal people around sunlight, which I guess could count as a weakness. But that wouldn’t make any actual tattoos like the shower thought we’re discussing here.