Excelsior

WTB Putrefaction or would like to know where it drops so I can get it myself.

for me it is usually pulled from IDOC event loot

This and other are "Peerless rare loot"
guides to other shards but might work here
https://www.uoguide.com/Peerless_Ingredients
https://uo.stratics.com/database/view.p ... 5&cat=2208

Go to Lady mel. It should be fairly easy to farm that