Silver Coin is a level 30 Common item in AION Retail 5.8. The quest Acheron Drake Research rewards it.

Where to get

Rewarded by

Quest	Reward	Quantity
[Coin/Group] Deep Six RM-78c	Basic reward	1
Teacher's Pet	Basic reward	1
Wild Dagger Hunt	Basic reward	3
Medicinal Tails	Basic reward	3
Swamp Monster	Basic reward	3
For a More Soothing Sword	Basic reward	3
Mushroom Hunting	Basic reward	3
Arachna Annihilation	Basic reward	3
Zombie Stinkers	Basic reward	3
Adopt a Villager	Basic reward	3
Reusable Bags	Basic reward	3
Cooking up Disasters	Basic reward	40
A Lone Defense	Basic reward	40
[Group] Impede Kromede	Basic reward	2

Similar items

Item	Grade	Level
Oculazen Essence	Common	30
Wind Spirit Mane	Superior	30
Dark Chocolate	Heroic	30
[Event] Noble Tidal Idian: Physical Attack	Fabled	30
Inspiring Idian: Physical Attack	Eternal	30
Lesser Supplements (Mythic)	Mythic	30
Moist Root	Junk	30