u/Fun-Silver8677

My dad is moving and gave me his old sports cards, there’s more cards than I can count and I’m going through each one and looking up their value. In his collection he has 3 packs of 1993 the leaf series 1 packs. I’m curious if I should keep them sealed or open them

(For anyone curious he is encouraging me to try and make money off the cards. Although I’m keeping all the Cleveland players for myself.)