The Rise (And Fall) of the PSA 10/10 Auto 1989 Upper Deck Ken Griffey Jr Rookie Card

Описание: Chapters

00:00 - 01:14: Introduction
01:15 - 02:08: Ken Griffey Jr. Signing History
02:09 - 05:46: Sales History
05:47 - 13:23: Submissions
13:24 - 16:05: Analysis

Research

Google Sheets Spreadsheet of 44 of the first 46 1989 Upper Deck Ken Griffey Jr. PSA 10/DNA 10 cards: https://docs.google.com/spreadsheets/...

Mill Creek Sports Website, all Ken Griffey Jr. Auto Cards: https://www.millcreeksports.com/cards...

4 Sharp Corners Website, all Ken Griffey Jr. Cards:
https://4sharpcorners.com/search/sear...

PSA Pop Report for 1989 Upper Deck Ken Griffey Jr. DNA Auto cards (must click PSA/DNA Certified Tab):
https://www.psacard.com/pop/baseball-...

PSA Certification Verification Page: https://www.psacard.com/cert

Dec. 2017 article saying Griffey signed with Tri-Star:
https://blowoutbuzz.wordpress.com/201...

March 2018 Sports Collector’s Digest article saying Griffey no longer signs:
https://sportscollectorsdigest.com/au...

2018 promo from Powers Sports Memorabilia saying this was the first time Griffey did mail order signings:
https://powerssportsmemorabilia.com/b...

2018 private mail in signing:   / 1714475231991137  

Tristar Private Signings for Ken Griffey Jr.: https://www.tristarproductions.com/Gr...

PWCC Sales Archive of 1989 Upper Deck Ken Griffey Jr. PSA 10 auto card:
https://sales-history.pwccmarketplace...

January 2021 Collectors Universe Discussion Forum on first big sale, $55,000 with PWCC: https://forums.collectors.com/discuss...

Detailed Explanation of the 9:10 Ratio for PSA Graded Sports Cards:
   • PSA's Pop Control of the Ryan Rookie Card