Columbia subject headings:
Harvard subject headings:
Fashion--Europe, German-speaking--History--18th century.
Fashion--Europe, German-speaking--History--19th century.
Hat trade--Europe, German-speaking--History--18th century.
Hat trade--Europe, German-speaking--History--19th century.
Hüllmann, Nicolaus, 1771-1812--Correspondence.
Princeton subject headings:
Fashion--Europe, German-speaking--History--18th century.
Fashion--Europe, German-speaking--History--19th century.
Hat trade--Europe, German-speaking--History--18th century.
Hat trade--Europe, German-speaking--History--19th century.
Hat trade--Germany--History.
Hats--Germany--History.