Columbia subject headings:
Harvard subject headings:
Salt industry and trade--Germany--Schwäbisch Hall--History--Exhibitions.
Salt industry and trade--Germany--Schwäbisch Hall--History.
Schwäbisch Hall (Germany)--Exhibitions.
Princeton subject headings:
Salt industry and trade--Germany (West)--Schwäbisch Hall--History--Exhibitions.
Salt industry and trade--Germany (West)--Schwäbisch Hall--History.
Schwäbisch Hall (Germany)--Exhibitions.