Almost 100% sure these are all original OEM from my childhood. I remember games coming with these and yes most of the time they were blank. 2 of the 24 have the nintendo stamp that came with specific games of which I dont recall. Still in solid shape

As a bonus Im including 5 pieces of styrophome that filled the game box and kept the game snug from sliding around. Again almost 100% sure everything here is original from the mid to late 80s

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