Columbia subject headings:
Harvard subject headings:
Coinage--Early works to 1800.
Coins--Early works to 1800.
Distances--Measurement--Early works to 1800.
Travel--Early works to 1800.
Voyages and travels--Bibliography--Early.
Princeton subject headings:
Distances--Measurement--Early works to 1800.
Money--Early works to 1800.
Travel--Early works to 1800.