Platinum Coin is a level 50 Common item in AION Retail 5.8. The quest [Group] Negating Nagas rewards it.

Where to get

Rewarded by

Quest	Reward	Quantity
[Growth] Death to Nimbarka!	Basic reward	5
[Growth] Stonecold Killer	Basic reward	10
[Growth] Blasting in Blasted Lands	Basic reward	10
[Growth] Zombie Eggs	Basic reward	10
[Growth] Bring Bree Proof	Basic reward	10
[Growth] It Takes a Village Out	Basic reward	10
[Growth] To the Bat Cave	Basic reward	10
[Growth] A Many Peded Thing	Basic reward	10
[Growth] Spider Down	Basic reward	10
[Growth] A Stone's Throw	Basic reward	10
[Growth] The Things We Leave Behind	Basic reward	10
[Growth] A Statuesque Monster	Basic reward	10
[Growth] Unstable Experiments	Basic reward	10
[Growth] Instruction in Death	Basic reward	5
[Growth] Kindness Kills	Basic reward	5
[Growth] Beauty's Objective	Basic reward	5
[Growth] Commander Conquered	Basic reward	5
[Growth] Fraught Futures	Basic reward	5
[Growth] Spiritual Growths	Basic reward	5
[Growth] The Future of Fungie	Basic reward	5
[Growth] Mind Over	Basic reward	5

Similar items

Item	Grade	Level
Anubite Essence	Common	50
Lunime Cocktail	Superior	50
Gust Crystal	Heroic	50
Noble Surkana	Fabled	50
Specialized Wrapping Scroll for Hero Class - Weapon	Eternal	50
Specialized Mythic Weapon Wrapping Scroll	Mythic	50
Fragrant Root	Junk	50