Columbia subject headings:
Astronomical clocks--History.
Astronomical instruments--History.
Cosmology.
Facini, Bernardo, active 18th century.
Harvard subject headings:
Astronomical clocks--History.
Astronomical instruments--History.
Cosmology.
Facini, Bernardo, active 18th century.
Princeton subject headings:
Astronomical clocks.
Astronomy--Mathematics.
Facini, Bernardo, active 18th century.