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Sunnyjim333 t1_j7dlv09 wrote

Lead does not decay very rapidly. It is also soft, you can scratch words onto it. You don't need much to mark a corner. I don't know about the Oregon Trail, but it was used through the ages.

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wakka55 t1_j7dofrg wrote

people were saying these were large, 1/2" thick, foot or two wide slabs in the comments. how else would they find them later?

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