Columbia subject headings:
Printing--History.
Printing--Specimens.
Harvard subject headings:
Printing--England--Early works to 1800.
Printing--England--History--Early works to 1800.
Printing--England--History--Origin and antecedents
Printing--History--Origin and antecedents--Early works to 1800.
Printing--Specimens--Early works to 1800.
Type and type-founding--England--London--Early works to 1800.
Princeton subject headings:
Printing--England--History--Early works to 1800.
Printing--History--Origin and antecedents--Early works to 1800.
Printing--Specimens--Early works to 1800.
Type and type-founding--England--London--Early works to 1800.