johnpseudonym

johnpseudonym t1_j7ci6gt wrote

For what it's worth, I owned a 1912 house in Chicago for about 20 years and found out that the property parcels were once delineated by burying slabs of lead. I found mine out buried by the alley - it was maybe 6" x 12" x 1/2 " and weighed a ton - but none of the my other neighbors were able to find/still had theirs. Just FYI.

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