Wasteland Merchant Note

Wasteland merchant note  is the name of a paper note in Fallout 3.

Location
It can be obtained from a wastelander merchant in a random encounter. He will suddenly die, seemingly drug induced, allowing you to loot the note from his corpse which in turn marks Oasis on your Pip-Boy map.

Transcript
Ödlandkaufmann - Notiz Nota de mercader del Yermo Записка торговца Записка торговця