Columbia subject headings:
Harvard subject headings:
Brittany (France)--History.
Coaching (Transportation)--France--Brittany--History.
Postal service--France--Brittany--History.
Posthouses--France--Brittany--History.
Princeton subject headings:
Coaching (Transportation)--France--Brittany--History.
Postal service--France--Brittany--History.
Transportation--France--Brittany--History.