Before inking rollers where invented in the early 19th century, all printmakers used ink balls to ink their type for printing. Ink balls are made by attaching wool and leather to wooden handles. While quite ubiquitous prior to the 19th century (used by everyone from Gutenberg to Ben Franklin to John Dunlap) ink balls are quite rare to find or see in use in 2026. 

Join us for an event celebrating Common Press's acquisition of our own set of ink balls. Special guest Sara Karpinski, Park Ranger at Independence Hall and Printing Office Coordinator at the Franklin Court Printing Office, will share her extensive experience using ink balls, while instructing Common Press Director Jessica Peterson on the making of our own set. Sara will share other printing materials from the Revolutionary era to interact with, such as wooden composing sticks.

This event is free and open to the public, but you will need either a PennCard or a photo ID to enter the building. If you don't have a PennCard, you will need to bring a photo ID and sign in at the security desk at the entrance to Fisher Fine Arts Library for access. See University access guidelines here.

This Open Studio is part of Common Press’s The Typography of Independence program. Check here for the full calendar of events.

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