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Josh K.I would try keeping them in the cardsavers and putting the card and cardsaver together into an 8 card sheet (which are designed to hold early 50's topps/bowman cards. Before I collected vintage, I kept all my cards from the 40's to the 80's in 8 card sheets and found that the sheets were tight enough to prevent even smaller cards from sliding around. By keeping the cards in the cardsaver (or maybe even a toploader with a penny sleeve) you will give the cards additional protection.