Certificate of Authenticity
Card Name
PROFESSOR'S RESEARCH
Production Number
00000409
Collection
SWSH BLACK STAR PROMOS 2019
Card Reference
SWSH152
Edition / Rarity
PROMO
Overall Grade
10
Legacy Grading System
Centering
9
Corners
10
Edges
10
Surfaces
10
This certificate confirms that this card was authenticated and graded by RKT Grading under our legacy grading system. Verify at rktgrading.com/population-report/legacy/00000409-professor-s-research
Graded on 30 March 2026