How Trading Card Grading Works
In short: An exploration of how professional grading services evaluate trading cards and how those numerical grades drive market value.
A 1:35 short film in the series “The Collector's Mind”, narrated by intellect_voice_01.
Sources used in this film: Tree Frog Grading (TFG), “How Card Grading Works | Card Grading Explained | TFG”; TCG Price Lookup, “PSA vs BGS vs CGC: The Complete Trading Card Grading Comparison 2026, TCG Price Lookup Blog”; Pokemon Price Tracker, “PSA 10 vs PSA 9: 2026 Price Gap Analysis & ROI Data”; Oregon Public Broadcasting, “Sports Memorabilia | History Detectives”; United States District Court for the District of Maryland, “Funk v Collectors Complaint 7.28.26”; University of Oklahoma Press, “7071-Article Text-13357-1-10-20160608.pdf”.
Sources used in this film
- Tree Frog Grading (TFG) — How Card Grading Works | Card Grading Explained | TFG · View →
- TCG Price Lookup — PSA vs BGS vs CGC: The Complete Trading Card Grading Comparison 2026, TCG Price Lookup Blog · View →
- Pokemon Price Tracker — PSA 10 vs PSA 9: 2026 Price Gap Analysis & ROI Data · View →
- Oregon Public Broadcasting — Sports Memorabilia | History Detectives · View →
- United States District Court for the District of Maryland — Funk v Collectors Complaint 7.28.26 · View →
- University of Oklahoma Press — 7071-Article Text-13357-1-10-20160608.pdf · View →
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Sources
- Summary by Intellect · source: Tree Frog Grading (TFG): How Card Grading Works | Card Grading Explained | TFG
- Also: TCG Price Lookup: PSA vs BGS vs CGC: The Complete Trading Card Grading Comparison 2026, TCG Price Lookup Blog
- Also: Pokemon Price Tracker: PSA 10 vs PSA 9: 2026 Price Gap Analysis & ROI Data
- Also: Oregon Public Broadcasting: Sports Memorabilia | History Detectives
- Also: United States District Court for the District of Maryland: Funk v Collectors Complaint 7.28.26
- Also: University of Oklahoma Press: 7071-Article Text-13357-1-10-20160608.pdf
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