Griffey's Upper Deck rookie card is one of the most famous baseball cards ever, but it isn't his only notable card ...

Another Ken Griffey Jr. card from this war-era set is among the most valuable in the collection. This historical and nostalgic piece represents Griffey's rapidly advancing career.

Ken Griffey Jr. 's 1998 Skybox card sold at Heritage Auction, setting the record for the highest Griffey Jr. card ever sold, ending at $280,600.

Ken Griffey Jr. defined a generation of baseball that also influenced the sports card hobby. Here are his most graded cards and their prices.

Ken Griffey Jr. (Image viaUSA Today) We now shift gears to looking at some of the most expensive signed pieces of memorabilia that Ken Griffey Jr. signed over the years.

Ken Griffey Jr. 1989 Upper Deck #1 — 113,943 total PSA population The perfect convergence of the height of the rookie card market, which drove the explosion of cards produced.

How Griffey's career took off and how the card became the darling of a business that had just reached frenzied heights has been well documented. But the story of how Griffey became the centerpiece ...

I had it made. I had the Ken Griffey Jr. rookie card! Beckett Baseball Card Monthly had this thing going through the roof! I think we can all agree that kids, for the most part, are dumb.

I had it made. I had the Ken Griffey Jr. rookie card! Beckett Baseball Card Monthly had this thing going through the roof! I think we can all agree that kids, for the most part, are dumb.

The card that changed everything.Now that Ken Griffey Jr. has retired, it's natural to reflect on what his legacy might be.The savior of baseball in Seattl ...

The story of how Ken Griffey Jr.'s rookie card became No. 1 in Upper Deck's first set is a Cooperstown-worthy tale of foresight, luck and photo manipulation, Darren Rovell writes.