Posted By:
JimmyJay,
Welcome and good luck with your collection - even in low grade these are worth some money - sorry to say but you may want to take them out of the screw down holders and just use new top loaders with one soft sleeve. The screw downs put too much pressure on the cards or at least make the screws a bit loose. Using eBay is a good resource or oldcardboard.com and vintagecardprices.com
Jimmy