Frequently Asked Questions from Buyers or Sellers

1. How is the authenticity of each document assessed?

The authenticity of documents is essential for the collector's pleasure and investment. In the case of Glórias, some precise criteria are evaluated, very carefully, to validate the authenticity of each item presented.

A safe provenance

All the people I purchase parts from are well-known amateurs or professionals who have long been recognized in the market, with an impeccable reputation.

Heirs, friends or colleagues of important personalities occasionally offer interesting documents. Before purchasing an item, I collect as much information from the seller as possible about the origin of the document and, in some cases, I ask for a copy of the identity card and a declaration of ownership.

In some cases, Glórias documents were requested directly from the author himself, the best guarantee of authenticity.

Dealers and the general public must be aware of the origin of the pieces they intend to purchase. Without adequate care, stolen or stolen items may be inadvertently acquired. To contribute to the fight against this illegal market, in case of doubts or suspicions, we consult Iphan, the Brazilian Institute of Museums (Ibram) and their databases available on their websites – the Banco de Bens Procurados/BCP and the Registry of Missing Museum Assets/CBMD.

These precautions can avoid the involvement of the buyer or dealer in the crime of receiving Brazilian Cultural Heritage stolen, stolen or obtained through international trafficking of works of art - conduct described in articles 155 of the Penal Code and 180 of Decree-Law No. 2,848, of 7 of December 1940 (deals with the reception of stolen property), and in Art. 62, of Law No. 9,605, of February 12, 1998 (deals with destruction and/or deterioration of cultural property).

Furthermore, all dealers in works of art and antiques, including auctioneers, must be registered in the National Register of Dealers in Antiquities and Works of Art (CNART). The Registry protects the dealer from being inadvertently involved in crimes of receiving stolen goods and money laundering through works of art. Glórias is correctly registered with CNART.

Accurate and coherent information

In fact, the probability of authenticity increases with the quantity, precision and coherence of the information collected about the author or recipient, the materials used (paper, ink, etc.), the coherence between the date and the topic addressed, the handwriting and signature, rhetorical style, etc. There are several technical elements that allow the specialist to evaluate and confirm, or not, the authenticity of a document.

In general, a complex document – ​​for example, a letter of several pages, with old handwriting and some drawings – is more difficult to copy than a simple signature.

Comparisons with other documents already authenticated

There are also professional databases, books and other professional or amateur databases that can assist in assessments using reliable records.

2. What defines the value of an autograph document?

In the rare documents market, as in other markets, it is mainly the relationship between supply and demand that sets prices. The celebrity of the writer and/or recipient, the number of pieces available for purchase on the market, the theme and content of the document, the origin, the support used, the handwriting and signature, the state of conservation of the paper and ink , the history of the piece (previous famous owners, participation in exhibitions or books, loan to museums), dimensions, and even fashion, are some very important criteria that we use to confirm authenticity and define the value – and the potential for valorization – of a document.

3. What guarantees are offered?

The authenticity

All Glórias documents are certified 100% authentic: this is our biggest concern and the reason for accurate analyses. A signed certificate, with the complete characteristics of the document, engaging our responsibility, is delivered to each buyer.

Resell on the website

Because we believe in the quality of our collection, every Glórias customer can resell their document here, purchased from us, at any time, at no cost or commission.

The guarantee

If any doubt arises questioning the authenticity of a document, we undertake to reimburse the buyer even before confirming the possible problem. It is worth mentioning that Glórias was created in 2010 and 100% of customers say they are satisfied.


It is the owner's responsibility to maintain documents in a protected location, with adequate light, humidity and temperature conditions. Documents must also be protected from the risk of theft, fire or damage due to water. Consult the complete guide on this subject to understand how to perfectly conserve your assets.

Example of certificate of authenticity and warranty

certificate authenticity and guarantee


4. Can I order a document that is not part of the collection?

Do you admire the painter Vincent Van Gogh, the Amazon rainforest or American scientists? If you are looking for a rare document about a specific personality or topic, which is not yet part of our catalogue, we can try to find this document for you. We collaborate with dozens of amateur and professional collectors around the world.

5. Is it possible to view and manipulate documents?

You cannot yet see the documents with your own eyes: in the future we would like to organize thematic exhibitions and then open a gallery, or a museum. However, upon request, we send free high definition images, as well as all available information about the document, to help you in your research.

6. What is the shipping cost?

Currently, the shipping cost is complimentary: it includes packaging, insurance, taxes and the fee charged by carriers.

7. What are the payment methods?

Cash payments or personalized installments by contacting us: or Whatsapp (31) 98221 5758

  • Credit card , payment protected by PayPal for Brazilian and international customers : Visa, Mastercard, American Express. Instant approval.

  • PayPal account , payment protected by PayPal for Brazilian and international customers. Instant approval.

  • Bank transfer

    - Company: Polymath/Glórias
    - CNPJ: 29.315.100/0001-99
    - NUBANK PJ - Bank: 260
    - Agency: 0001
    - Account: 86338169-6
    - We await your proof of payment to or via Whatsapp (icon in the bottom right corner of the website).

  • Pix

    - Company Polymath/Glórias: CNPJ 29.315.100/0001-99.
    - We await your proof of payment to or via Whatsapp (31) 98221 5758 (icon in the bottom right corner of the website).

8. What is the purchasing procedure?

1. After payment confirmation, we will send you, within 48 hours, by email, in PDF format, the signed and stamped certificate of authenticity and guarantee. You validate all your information. The document will still appear on the website, but in the "not available" category. And in addition to the certificate, you will receive tips on how to preserve your document well.

2. After validating your information on the certificate, we prepare and send your order. We will provide you with the tracking number so we can track the delivery together. Delivery time is 10-15 working days. During this period you will receive updates by email every Monday.

9. Do I have to pay taxes?

  • There are no taxes on domestic shipments.

  • There are two taxes levied on international remittances: the import tax, which is federally responsible and whose rate is 60% , and the Tax on Circulation of Goods and Services (ICMS), which is the responsibility of the states and equivalent to 17%. To find out if an international purchase has been taxed, simply access the Correios application and click on the "My Importations" section. Then, you need to enter the package tracking code and check the shipping status. If the message "Awaiting Payment" appears, then the purchase has been taxed and the tax must be paid online to receive your order.

10. What will I receive at home?

For greater security, we use discreet and rigid envelopes, sent via registered mail. The document is well protected. Each document is placed in a protective neutral (acid-free) paper folder, which allows for optimal conservation over time, and is delivered in an elegant presentation folder.

11. Can I track my purchase?

Yes. At the different stages of your purchase, from payment to delivery, you are informed; With the Correios tracking code, you can track the delivery on the indicated websites.

12. What are the best conditions for preserving a document?

Temperature and humidity in the storage location, atmospheric pollution, incorrect handling or improper packaging can damage your collection. Some procedures can promote a longer useful life, and effectively contribute to the preventive conservation of the collection:

1. Handle the works with both clean hands and using cotton gloves, always on a smooth surface.

2. Do not overlap works in direct contact, if necessary, use neutral cardboard sheets, which will hinder the possible migration of chemical additives from one to the other.

3. Avoid any surface or object that causes abrasion or marks on the work.

4. Do not use adhesive tapes – due to their chemical composition – or metal fasteners in the works.

5. Pack the works in a vertical position, avoiding compression with the aid of bookcases, in wrappers and/or boxes made of neutral and chemically stable material; Large works must be stored horizontally, with a maximum of three volumes overlapping.

6. Avoid the presence of any type of food in the place where works are stored and handled.

13. How can I authenticate a rare document in my collection?

We work exclusively online and it is not possible to definitively authenticate documents without having them in hand. However, we accept an opinion on your documents, using high definition images, for a fixed cost per document: you then receive a digital document with our evaluation.

14. I have some documents that seem valuable to me, how can I sell them?

Your documents, when relevant, can be purchased by Glórias or simply presented to our audience of researchers, students and curious people. We respect the wishes of each client and try to provide personalized advice. If there is a negotiation and a transaction, both are completely transparent and discreet. Normally quick, these processes take longer when external expertise is needed (translator, historian, paleographer, etc.) or when the document is of interest to collectors or international institutions.

15. I agreed to sell my document to Glórias, what is the next step?

We have negotiated the value of your document, you have made your decision, now you need to send your bank details, your CPF and the document - well protected and secure - to one of our offices, in France or Brazil, for our team to check. On the same day of delivery, we validate the authenticity and conservation status of the document, and make payment by bank transfer to your account. If the document is not validated, we will return the document free of charge within 10 working days.

How to send your document securely?

How to send your document securely

16. Do you evaluate and buy stamps, coins, books or antique objects?

We are specialists in rare autograph documents, we do not work with stamps, coins, books or antique objects, except when the books have a valuable dedication or when the objects belonged to a great historical personality (memorabilia).

To evaluate or sell old stamps or coins, we recommend going to Facebook and typing related words in the search field: philately, philatelists, stamps, numismatics, numismatists, coins, etc. This way, you will discover groups of people interested in old stamps or coins who will be able to evaluate - and perhaps buy - your collection.

For old books without dedication, we recommend looking for second-hand bookstores in your city or in large cities closest to your home, or online second-hand bookstores, they are experts.

For antique objects, we recommend looking for antique dealers in your city or the capital closest to your home, they are experts, or searching for similar objects on the Facebook marketplace.