•Save 10% on all online submissions — Code: GRADE10•Tamper-evident graded slabs•Live population registry•Trusted by collectors, dealers & auction houses•Save 10% on all online submissions — Code: GRADE10•Tamper-evident graded slabs•Live population registry•Trusted by collectors, dealers & auction houses
The MAS Standard
A grade you can stand behind
Every MAS grade is the product of advanced, industry-leading methods and a consistent, transparent standard trusted by collectors, dealers, and auction houses worldwide.
Our methods
Advanced, industry-leading process
- High-resolution front and back scanning of every card
- Controlled-light examination of centering, corners, edges & surface
- Forensic autograph comparison for signed items
- Tamper-evident, ultrasonically sealed archival holders
- Unique cert numbers with real-time online verification
- Transparent, live population registry for every card
What we evaluate
The four pillars of a grade
Centering
How evenly the image is framed within the borders, front and back.
Corners
Sharpness and integrity of all four corners under magnification.
Edges
Cleanliness and smoothness of the card's edges, free of chipping or wear.
Surface
Print quality, gloss, and freedom from scratches, dents, or stains.