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

The following is a press release from Numismatic Guaranty Company (NGC) announcing that it has appointed the Bolaffi Auction Group as its official submissions center in Italy and Spain.

Numismatic Guaranty Company™ (NGC®), Numismatic Conservation Services™ (NCS®), and Paper Money Guaranty® (PMG®) 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 and banknotes 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 and PMG — three 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.

After authenticating and grading collectibles, NGC and PMG encapsulate them in proprietary holders for long-term preservation. NGC-certified coins and PMG-certified notes 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 and PMG 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 and PMG-certified notes are more easily bought and sold around the world and sell for higher prices. 

“Like NGC, NCS and PMG, The Bolaffi Auction Group believes in a vibrant numismatist 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 and PMG.”

Steven R. Eichenbaum, CEO of NGC, NCS and PMG, 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 and PMG 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 and PMG 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 and PMG are shipped year-round (with insurance coverage) between the companies’ European offices and US headquarters. For more information about NGC and NCS, visit, and for more information about PMG, visit

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