An'ferthe is a silver sword available in The Witcher 3: Wild Hunt and comes in 4 different forms:
An'ferthe (crafted)[]
Crafting Requirements 
Min. Required Level: Journeyman blacksmith
An'ferthe (basic)[]
It can be found as random loot or purchased from the following merchants:
- All blacksmiths in Novigrad, Oxenfurt and Skellige
- Merchant at the Isolated Hut on Hindarsfjall