Hi all 
I have a box of basketball and hockey cards from the early 90s. They are in pretty good condition as they've just been sitting in this box for the last 20 years. I'm pretty sure I have MJ, Bird, Gretzky, Lemieux, etc. The brands are mostly Upper Deck and Sky Box. Are these worth anything? What would be the best way to sell them if they are?
thanks!

I have a box of basketball and hockey cards from the early 90s. They are in pretty good condition as they've just been sitting in this box for the last 20 years. I'm pretty sure I have MJ, Bird, Gretzky, Lemieux, etc. The brands are mostly Upper Deck and Sky Box. Are these worth anything? What would be the best way to sell them if they are?
thanks!