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A Modern Mystery: How Did They Do It?
No one has ever been able to recreate the Cumberland Pencil Company's secret pencils.
Half a century after they were made, the company tried to reconstruct the pencils... without success. Modern machinery couldn't hollow out the shafts without cracking them. Workers struggled to roll the tissue maps tightly enough to fit inside. In the end, they had to make the replicas thicker than the original pencils. |