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PSE Set Registry
Register your sets and see how your collection compares to others worldwide.
Population Report
Populations of stamps certified by PSE.
Stamp Market Quarterly
Online price guide for all important U.S. stamps.
Stamp Marketplace
View PSE stamps for sale from top PSE dealers.
PSE Grading Guide
Explanation of how and why stamps are graded.
U.S. Design Numbering System
A guide to the system
Photo Grading Guide
A photographic guide to grading U.S. stamps.
Cert Verification
Verify the grade and authenticity of PSE stamps.
PSE Guarantee
View our detailed stamp guarantee system.
Links
View links to dealers, organizations, and auctions.
About PSE
About our company and experts.
Professional Stamp Experts
5965 Harrison Dr. Suite 6
Las Vegas, NV 89120
Email:
info@gradingmatters.com
Phone: (702) 776-6522
Cert Verification
When you see a listing of a PSE stamp for sale, you can verify the grade and authenticity of the stamp by simply entering the certification number below. With the PSE certification number, you can verify the authenticity and quality of the certified stamps you see for sale online as stamps actually evaluated by PSE experts. After you receive the stamp, it should have the same PSE certification number, grade, and description.
Cert Number:
Not a valid cert number.
Please enter a Cert Number!
