Mathias Meyer has been an expert in autographs, manuscripts, and historical documents since 2010. A member of the International League of Antiquarian Booksellers (ILAB), he works with collectors, sellers, institutions, sports clubs, and auction houses in Brazil and abroad.

What you get

✔ Professional opinion on the item's authenticity
✔ Estimate of market value
✔ Assessment of collector interest
✔ Identification of signatures, where applicable
✔ Guidance on sales and marketing
✔ Information on the possibility of certification

Who this service is for

✔ You inherited an item and want to know if it has value
✔ You want to sell an autograph, document, or collectible item
✔ You intend to buy an item and seek a second opinion
✔ You are a collector and want to better understand a piece
✔ You are a dealer, auctioneer, or market professional

How it works

1- Send clear photos of the item

2- The analysis is performed by an expert

3- Receive your opinion via email or WhatsApp

Price

R$ 90 per item.

Professional packages available upon request.

Important

✔ The Quick Opinion is a professional opinion based on the information and images provided by the client, as well as the expert analysis of the item.

✔ The process is 100% remote. Except in rare cases, it is not necessary to physically send the item for analysis.

✔ If a Certificate of Authenticity is later requested, the R$ 90 paid for the Quick Opinion will be fully deducted from the cost of the certificate.

Do you own an exceptional piece?

In some cases, Glórias may purchase the item directly or accept it on consignment.

Receive a professional opinion before buying, selling, or certifying your item.