TR_m3_OE_FG_bk_ConJou1 2 3
Appear in world but can't be picked up until their quest is started. I swear there was part of their script that gave you a vague journal entry but didn't officially start the quest.
Resolution - either fix that part of the script, or disable until quest start. Yes the notes are supposed to be put there ~100 years ago, but maybe the cultists/nixhounds just happened to find it in a pile recently
Reported in discord.