The ASG Midsize and Sheet Holders allow for greater accommodation of stamp sizes than ever before. Learn more >
The quick, easy and free way to verify and view any ASG-certified stamp is available now! Learn more >
ASG grades stamps according to an internationally accepted grading scale of 1 to 100. Learn more >
Behind this famous Chinese Stamp, there is a hidden story about an artist and his monkey. Learn more >
The well-known numismatic company in Selangor, Malaysia, has been an Authorized Dealer since 2016. Learn more >
This tool can help you to verify that your ASG holder is genuine and has not been tampered with. It can also be a useful starting point to research your ASG-certified stamp.
Enter a stamp's ASG certification number (circled in the image) to confirm its description and grade in ASG's database and, if available, view the images of the stamp taken by ASG.
Learn how to submit stamps to ASG for expert authentications and grading.
Learn more >