/
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.

A woodcut printer's mark of Johann Froben depicts a caduceus, a staff with two serpents entwined around it and a dove perched on top, held by two hands emerging from clouds. The name "FRO BEN." is inscribed on either side of the staff.