Columbia subject headings:
Harvard subject headings:
Construction industry--Germany--Nuremberg--History.
Family-owned business enterprises--Germany--Nuremberg--History.
Industries--Germany--Nuremberg--History.
Iron foundries--Germany--Nuremberg--History.
Machinery industry--Germany--Nuremberg--History.
Spaeth & Co.--History.
Princeton subject headings:
Corporations--Germany.
Family-owned business enterprises--Germany.
Späth family--History.