Columbia subject headings:
Harvard subject headings:
Labor laws and legislation--Germany
Porcelain industry--Employees--Legal status, laws, etc.--Germany.
Porcelain industry--Germany--History--18th century.
Princeton subject headings:
Labor laws and legislation--Germany.
Porcelain industry--Employees--Legal status, laws, etc.--Germany.
Porcelain industry--Germany--History--18th century.