Columbia subject headings:
Colonial companies--Germany--Brandenburg--History.
Colonial companies--Germany--Prussia--History.
Germany--Foreign commercial relations--History.
Harvard subject headings:
Colonial companies--Germany--Brandenburg--History.
Colonial companies--Germany--Prussia--History.
Commercial law--Germany--History.
Princeton subject headings:
Colonial companies--Germany--Brandenburg--History.
Colonial companies--Germany--Prussia--History.
Germany--Foreign commercial relations--History.