I do actually know that one. The original game release in 2012!
For example you can see folks talking about it in May 2012 on the Diabloii.net site. The game was released May 15, 2012 and the post is May 28, 2012.
Same with Wirt’s Original Leg. If you scroll down the thread you will see another post that quotes the old forums (now gone) with the list of all the original “odd” items and how to get them.
The splintered oar
griswold’s worn edge
rakanishu’s blade
wirt’s original leg
The Clipper
Spectrum
Lore Items how to find them :
( just starting it , might be missing specific quest to find them or it could be found in multiple difficulties )Splintered Oar : lvl 50 , 2H swordhell , act 1 , event after talking to the ferry man in Act 1 (hell) , in front of Wortham Cathedral , 1 of the 3 special mobs
The Clipper : lvl 14 , 1h daggernormal ? , act 2 , desolate sandsThe Unique monster "Nine Toads, Terror of the Borderlands"found while looking for Zoltun Kulles’ blood. When we entered the desolate sands we ran into a champion called “Nine-Toads”
Griswold Worn Edge : lvl 1 , 1h swordnormal , act 1 , old tristramwill spawn on an anvil
rakanishu’s blade : lvl 16 , 1h swordnormal , act 2 , dahlgur oasis, used for bashanishu achievement
wirt’s original leg : lvl 5 , 1h macenormal , act 1 , den of the fallen lvl2 , bishibop corpse
Spectrum : lvl 30 , 1h swordnormal ? , unique monster Creampuff , in whimsyshire
Edit again. The patch notes were removed from the index but we do have a player made thread with all of them. Not just RoS like the title says.