The grid of hour lines and day curves forming this dial has been engraved on the inner surface of a large marble flower sprouting from a marble stem and calyx. A series of petals surrounds the circular opening on the oblique front. Parts of two curving tendrils, sprouting from a central point below the meridian, can be seen carved into the front surface of the dial.
This object has not been measured by the 3D pipeline. Its entry in the catalogue rests on the published description only; no surface fit, latitude or line detection exists for it.