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This library is built in the open.
If you spot an error, have a suggestion, or just want to say hello — we’d love to hear from you.

The astrological and alchemical symbol for Mercury (☿) is centered at the top of the page, with a simple cross (+) positioned directly beneath it.
original: "Tabula Nigra"
original: "Schwartzer Mohren-stein"
original: "Pentaculum Nigrum"