NGC, NCS, PMG and CGC Appoint The Bolaffi Auction Group an Official Submission Center in Italy and Spain

Posted on 2/17/2022

The collaboration will help more collectors and dealers take advantage of expert certification and conservation services.

Numismatic Guaranty Company™ (NGC®), Numismatic Conservation Services™ (NCS®), Paper Money Guaranty® (PMG®) and Certified Guaranty Company® (CGC®) have appointed The Bolaffi Auction Group, a leading numismatics firm in Europe, as an Official Submission Center in Italy and Spain.

The Bolaffi Auction Group traces its roots to a philatelic business founded by Alberto Bolaffi Sr. in Turin, Italy, in the late 19th century. Aste Bolaffi later expanded to coins and today is one of Europe's leading auction houses. In 2018, Aste Bolaffi purchased two other prestigious auction houses: Soler y Llach International Auctions, founded in 1989 and based in Barcelona, Spain; and Harmers of London, founded in 1918.

The Bolaffi Auction Group affiliates hold several major numismatic auctions a year. As coins, banknotes and other collectibles are increasingly sold in online auctions, it has become even more important to offer customers accuracy, transparency and peace of mind. The Bolaffi Auction Group is providing greater confidence and security to the marketplace by working more closely with NGC, NCS, PMG and CGC — four companies renowned globally for their expertise and impartiality.

NGC was established in 1987 to provide expert, unbiased assessments of the authenticity and grade of coins, tokens and medals. It has since certified more than 53 million collectibles. NCS, a professional coin conservation service, has conserved more than 1 million coins since it was founded in 2001. In 2005, PMG was established to provide similar grading services for paper money and has now certified more than 7 million banknotes.

CGC was founded in 2000 to provide clear and impartial authentication and grading services for comic books. CGC Trading Cards™, a new dividion established in 2020, certifies cards from Pokémon, Magic: The Gathering and 11 other games.

After authenticating and grading collectibles, NGC, PMG and CGC encapsulate them in proprietary holders for long-term preservation. NGC-certified coins, PMG-certified notes and CGC-certified collectibles are backed by the companies’ comprehensive guarantees of authenticity and grade, which provide recourse in the rare event that the companies mistakenly certify a counterfeit or overgrade a collectible.

The NGC, PMG and CGC Guarantees, along with the companies’ expertise, protective holders and extensive online research tools, provide collectors with significantly greater confidence. As a result, NGC-certified coins, PMG-certified notes and CGC-certified collectibles are more easily bought and sold around the world and sell for higher prices.

“Like NGC, NCS, PMG and CGC, The Bolaffi Auction Group believes in a vibrant collectibles marketplace driven by transparency and integrity,” said Giulio Filippo Bolaffi, President of The Bolaffi Auction Group. “By working together, we will benefit the hobby by providing more collectors and dealers with the value that comes from expert certification conducted by NGC, PMG and CGC.”

Steven R. Eichenbaum, CEO of NGC, NCS, PMG and CGC, added: “Through its sterling reputation and expertise in a wide range of collectibles, The Bolaffi Auction Group has become a global powerhouse in numismatics. We are excited to expand our collaboration with them to better serve collectors and dealers.”

As an Official Submission Center, The Bolaffi Auction Group will accept submissions to NGC, NCS, PMG and CGC at its offices in Spain and Italy; appointments are preferred. It can also answer questions about the companies’ services and benefits. The affiliates are:

NGC, NCS, PMG and CGC are independent members within the Certified Collectibles Group® (CCG®). Headquartered in Sarasota, Florida, USA, the CCG companies also have offices in the UK, Germany and China, as well as a global network of Official Submission Centers, Strategic Partners and Authorized Dealers.

Submissions to NGC, NCS, PMG and CGC are shipped year-round (with insurance coverage) between the companies’ European offices and US headquarters. For more information about NGC and NCS, visit For more information about PMG, visit For more information about CGC, visit

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