The Roll and Reinhold globe belonging to the Osservatorio di Capodimonte, according to Fiorini, is one especially worthy of mention.[353] This is described as a hollow ball having a diameter of about 21 cm. The sphere itself is made of copper, the remaining parts of gilded brass. The horizon circle is composed of several overlapping brass plates. A clockwork mechanism is supplied, by means of which the sphere and certain circles may be made to revolve. The surface of the copper sphere is artistically engraved, having numerous circles representing the ecliptic system with its parallels and meridians, and the equatorial system including its five zones. The Ptolemaic constellations are represented, the figure of each being engraved in outline with the name in Latin. The several stars are not named but near each is an engraved number to indicate its magnitude, these numbers ranging from 1 to 6. Nebulae are distinguished by small circles, and the Milky Way by numerous dots. The meridian circle, in which the sphere revolves, has the usual graduation from 0 to 90, but has in addition a climatic graduation designed “Climata ex Ptolomeo,” and a division into zones called “Torrida Zona,” “Zona habitabilis temperata,” and “Frigida zona.” On the convex surface of the horizon circle we find engraved the names of the four cardinal points, and on the upper surface of this circle are engraved the Julian and the Gregorian calendars, the names of the saints, the dates on which the sun enters the various signs of the zodiac, and the ancient names of the principal winds. The globe mountings, all of brass, are artistic and well preserved. Like the Dresden example it rests upon a four-branched support, the extremities of each branch representing the claws of the griffin. Including the base, the instrument is 43 cm. in height. It seems not to be known when or how this globe, constructed in Augsburg, found its way to the Naples Museum, where it is treasured as one of the choicest of ancient astronomical instruments.