Columbia subject headings:
Harvard subject headings:
Didot, Firmin, 1764-1836.
Didot, Jules, 1794-1871.
Firmin-Didot (Firm)
Firmin-Didot (Firm)--History.
Printers' ornaments--Specimens.
Printing--France--History--18th century.
Printing--France--History--19th century.
Printing--France--Paris--History.
Printing--Specimens
Type and type-founding--France--Paris--History.
Type and type-founding--Specimens
Princeton subject headings:
Didot, Firmin, 1764-1836.
Didot, Jules, 1794-1871.
Printing--France--Paris--History.
Printing--Specimens.
Publishers and publishing--France--Paris--History.
Type and type-founding--France--Paris--History.
Type and type-founding--Specimens.