In the Library of Congress, acquired from L. Friedrichsen of Hamburg, is a fine example of the work of Vopel.[241] This armillary sphere of eleven rings, encircling a terrestrial globe 7.2 cm. in diameter, is mounted on a copper base. On the circle representing the Tropic of Cancer is the inscription “Caspar Vopel artiv̄ profes. hanc sphaeram faciebat Coloniae 1543.” “Caspar Vopel professor of arts made this globe in Cologne in the year 1543,” while on the remaining circles are engraved numerous cosmographical signs and names. The terrestrial globe is covered with a manuscript map in colors, and bears the title legend “Nova ac generalis orbis descriptio,” and the author legend “Caspar Vopel mathe. faciebat.” Most of the regional names on the map are in red, and a red dot is employed to indicate the location of certain important cities, the names in general being omitted. The globe is remarkably well preserved (Fig. 56). [Illustration: Fig. 56. Vopel Globe, 1543.] [Illustration: Fig. 56a. Western Hemisphere of Vopel Terrestrial Globe.] In the collection of Jodoco del Badia, state archivist of Florence, is a Vopel armillary sphere of the year 1544.[242] The engraved inscription on the Tropic of Cancer reads “Caspar Vopel Me. Matem. hanc sphaeram faciebat coloniae 1544.” Within the eleven armillae is a very small wooden sphere intended to represent a terrestrial globe of wood, about 3 cm. in diameter, on which the equator and the tropics are represented, but no geographical details of any value appear because of the small size of the ball. A Vopel armillary sphere, apparently like the preceding, bearing the same date and legends, is reported as belonging to the city museum of Salzburg.[243]