A unique clay object discovered at the site of Apollonia-Arsuf (Israel), which I claimed had been used as a horizontal (flat) portable sundial (horologium). The object is somewhat pentagonal, depicting a design that was incised (and partially stamped) on it prior to firing. Given its small dimensions, I rejected the idea that it could have served as a game board. Due to its shallowness (some 0.15 m in depth) and design, I also rejected the possibility that it could have served as a mould for a metal object.
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.