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French astronomical compendium ~ Includes the coat of arms and motto of Charles X. It is composed of a nocturnal, a list of latitudes in degrees of twelve cities in Europe, a compass, an azimuth pinnules (for sighting), and a double scale to assist in the measurement of the unequal hours in a day throughout the year - dates to 3rd quarter of the 16th century. (1st of two pins, Louvre)