CCG Celebrates More than 75 Million Collectibles Graded

CCG Celebrates More than 75 Million Collectibles Graded

Surpassing 75 million collectibles graded is reason to reflect on this incredible achievement. Learn more >

A Conversation with Mark Salzberg

A Conversation with Mark Salzberg

The CCG Chairman shares his collecting journey and his perspectives on the collectibles business. Learn more >

ASG Certifies Two Rare 1897 Red Revenue Stamps

ASG Certifies Two Rare 1897 Red Revenue Stamps

The high-grade examples of this stamp are among the rarer collectibles in Chinese philately. Learn more >

Rare ASG-graded Chinese Stamps Sell for Nearly $60,000

Rare ASG-graded Chinese Stamps Sell for Nearly $60,000

A group of ASG-certified stamps sold for tens of thousands of dollars in a Champion Macau auction. Learn more >

Learn About the ASG Grading Scale

Learn About the ASG Grading Scale

ASG grades stamps according to an internationally accepted grading scale of 1 to 100. Learn more >

An expert and impartial stamp grading service from the people behind NGC, PMG and CGC. Subscribe for updates >

Verify ASG Certification

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What is ASG Certification Verification?

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.

Instructions

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.