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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 printer's mark of Johann Froben depicts a caduceus, a staff with two entwined snakes, topped by a bird. It is held by two hands emerging from clouds. The word "FRO" appears to the left of the staff and "BEN" to the right.