Authenticated Stamp Guaranty
CCG launches ASG, an expert and impartial grading service for collectible stamps.
UK Submission Center
Heritage Auctions UK Official Submission Center
Eric P. Newman Collection
Sales of the NGC-certified selections from the remarkable collection of Eric P. Newman have achieved nearly $55 million.
Numismatic Conservation Services
NCS provides professional conservation services for public and private collections of coins, tokens and medals.
Finest known copy of Action Comics #1 CGC Graded 9.0 sells for record $3.2M on eBay.
Submission Center in Thailand
Eur-See Collecting Co., Ltd. Official Submission Center in Thailand
Hong Kong Offices
NGC, NCS and PMG Open Hong Kong Submission Center