Since we guarantee the genuineness of ALL the items we sell in our shop, we offer the buyer the possibility of getting a COA (Certificate of Authenticity) of any of the item/s purchased. The COA's are done using the best printing quality on a thick paper. The COA is DIN-A5 size (148mm x 210mm), and it shows a picture of the item bought and a description of it explaining, when available, the provenance and all the information possible apart from guaranteeing the originality of the item itself. All the COA's are personally hand-signed by the experts who are highly knowledgeable and with an experience of more than 25 years in the hobby.Please see examples of certificates issued to our customers. Each COA is 25$ and it can be added to your cart while doing the check out.