HERNANDOS SWORD (100% true)
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to find part 3 you should be in level 57+ and should have chosen waupee in decision quests and it should be Monday between 19:00 - 19:20 then you should remove your weapon and put a song book in your character product slot and then a new quest will appear in saloon and give you the part 3.
Was found this on midgrin's profile :
and West support immediately removed it :
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Part 1 can be found at high luck jobs, part 2 its possible to get from jobs/quests.