Both the outer sides of the leaves are blank.
The inner side of the upper leaf has a string gnomon dial with common hours numbered from VI to XII to VI and coloured decoration of circles and dots in the spandrel spaces.
The inner side of the lower leaf has a compass (needle missing) with floating card of painted (red, blue and gold) pasteboard, and a string gnomon dial with common hours numbered from VI to XII to VI. The same decoration as in the upper leaf is in the spandrels.
See P. Gouk, The Ivory Sundials of Nuremberg 1500-1700 (Cambridge, 1988).