A Letter Of Authenticity is at times provided by the seller to the buyer to prove an item is authentic. Unfortunately anyone can make a LOA, so be sure the seller offering such is a trustworthy and legitimate seller.
Unfortunately a LOA can also be faked. Anyone can print up a realistic looking LOA (Letter of Authenticity). So the question is, can we get a COA for that LOA?
Tip: Only trust LOAs that are guaranteed by reputable companies and have a money back guarantee.
A similar term used is COA Certificate of Authenticity