Old data files https://github.com/blizzhackers/d2data/tree/master/json
Treasure Classes https://forums.d2jsp.org/topic.php?t=24046916&f=87
Item Generation Tutorial https://diablo2.diablowiki.net/Item_Generation_Tutorial
How has pindleskin changed since 1.09 https://www.diabloii.net/forums/threads/how-has-pindle-changed-since-1-09.428922/
parsing field meanings from .txts https://d2mods.info/forum/kb/viewarticle?a=162
Hell Mephisto drops calc https://diablo2.diablowiki.net/Item_Generation_Tutorial#Hell_Mephisto.