There are a multitude of organizations offering genuine added value for your old banknote. In our case, we quickly opted for PMG - Paper Money Guaranty,, an American company founded in 2005, which has rapidly become the world leader in numismatic product certification. In Europe, the company has an office in Munich.
Numizon is an official PMG partner!
Discover the advantages of having your banknotes certified by PMG via the Numizon tendering office.
How can I get my tickets upgraded with Numizon?
Why have your collector banknotes engraved?
The grading of old banknotes is a service that comes at a price. It should therefore only be done in certain cases. Here are the cases in which we advise you to have your banknotes graded/slabbed.
Quels billets de collection faut-il grader ?
How is grading carried out?
At PMG, the grading process is carried out by at least two professionals who are experts in paper money. To guarantee impartiality, the graders, who are PMG employees, cannot be involved in the buying and selling of banknotes.
First of all, the expert identifies or confirms the banknote's identification and fills in the information that will be present on the slab header.
Visit the PMG website to understand the information on a slab
Each appraiser then examines the banknote independently and scores the quality in the central database. PMG uses a quality rating scale that is recognized within the numismatic community. If there is disagreement between the 2 professionals, the banknote is re-analyzed to reach a consensus.
There are 13 quality levels and 28 sub-levels.
Understanding the quality rating scale for old banknotes
How much does banknote grading cost?
The price varies according to the age of the banknote (issued before or after 1960) and its estimated value (5 steps).
An additional cost must be added for large banknotes (as the slab is adapted to the size of the banknote).
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