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Signed Slab Index Certified autographs · what they cost, what they sold for
14,200 live listings   193 signers   876 confirmed sales  updated 3 min ago
Index › Ken Griffey Jr

Ken Griffey Jr Ball or equipment — JSA Authenticated

Buy it now on eBay $250.00 ›cheapest of 1 live listing on eBay
1Live listings
1Confirmed sales

Asking range

Not enough listed at this grade to show a spread yet. One or two asking prices are anecdotes, not a market.

Live listings

ListingTypeAsking
KEN GRIFFEY JR SIGNED AUTOGRAPHED OMLB BASEBALL W/ JSA COA / MARINERS / MLB HOF!+KEN GRIFFEY JR SIGNED AUTOGRAPHED OMLB BASEBALL W/ JSA COA / MARINERS / MLB HOF!KEN GRIFFEY JR SIGNED AUTOGRAPHED OMLB BASEBALL W/ JSA COA / MARINERS / MLB HOF!KEN GRIFFEY JR SIGNED AUTOGRAPHED OMLB BASEBALL W/ JSA COA / MARINERS / MLB HOF! on eBayBuy It Now$250.00

Confirmed sales

DateWhat soldPriceConfidence
2026-09-22Ken Griffey Jr HOF Seattle Mariners Signed OAL Baseball AUTO JSA COA$186.50HIGH