Four volvelles on one side and one volvelle on the other side. Small token with suspension eyelet on throne. recto--volvelle with tab marked 300 in Arabic. This turns beneath another volvelle with 14 petals, one of which is pierced to reveal Arabic markings; other petals have Syriac months. On top, another volvelle of 14 sections; pierced volvelle. verso--same as other side but petals not trimmed on second volvelle. Tab marked 302; Arabic months on second volvelle. Arabic inscriptions are stamped in relief on the instrument and very difficult to read.
Materiale
Unsigned.
Arabic inscriptions that are very difficult to read stamped in relief on the instrument.