Columbia subject headings:
Printers' marks--Switzerland--Basel.
Printers--Switzerland--Basel.
Printing--Switzerland--Basel--History.
Harvard subject headings:
Basel (Switzerland)--Imprints.
Early printed books--Switzerland--Basel--16th century--Bibliography.
Incunabula--Switzerland--Basel--Bibliography.
Printers' marks--Switzerland--Basel.
Printers--Switzerland--Basel--Biography.
Printers--Switzerland--Basel.
Printing--Switzerland--Basel--History--16th century.
Printing--Switzerland--Basel--History--Origin and antecedents.
Printing--Switzerland--Basel--History.
Princeton subject headings:
Printers' marks--Switzerland--Basel.
Printers--Switzerland--Basel.
Printing--Switzerland--Basel--History.