Contributors & Partners
Incunabula Short Title Catalog (ISTC)
Data extracted for the Output by Location and Current Holdings layers. Geographic coordinates present in ISTC records were compiled from data supplied by the Atlas of Early Printing.
Gesamtkatalog der Wiegendrucke (GW)
Data for the Typography layer was supplied by Oliver Duntze from the Gesamtkatalog's companion database website, the Typenrepertorium der Wiegendrucke.