I've casually wondered for years about card storage in the 1950s+ since my exposure to the hobby came in the early 80s.
I don't remember when toploaders/penny sleeves became common or even highly used storage in my area, but I remember 9-card sheets in binders being a thing.
I do wonder about stuff that happened before I was old enough to pay attention. You don't see many cards being glued into albums with 1950s+ cards, unlike decades earler. They can't all have been just thrown into a box or similar...maybe.
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