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Thread Owner
here are a couple of photos of a place I get into.? Do these things represent anything?? Any help would be great? Anybody see anything like this?? It is in an abandoned mine in Mexico.? These are both a couple of hundred feet down.? The black marks are under the scratched in arrow which I think is very recent.? The miners used / and still use a rock which they called carburo and it was mixed with a little water which then put off some kind of gas that is flamable.? Other marks of the same color date it at 1920 but I know from locals that the mine is 200+ years old and not the oldest around here by any means.? Thanks again.