I Tested the Impact of Ken Griffey Jr’s 1991 Upper Deck Card – Here’s What I Discovered!
I remember the day I first laid eyes on my Ken Griffey Jr 1991 Upper Deck baseball card. As a young fan, I was in awe of the iconic image of Junior flashing his signature smile and swing. Little did I know, that card would become one of the most sought-after and valuable in the…