Throne
The throne is of the indo-persian, pierced type . The throne is attached with a integrated base. The throne culminates in a trefoil to which the shackle attaches..Ring
The ring is of the simple, round cross-section type (i.e. simple plain ring made from a round rod or piece of metal).Shackle
Shackle of the omega type (i.e. Ω-shaped shackle). This shackle is decorated with engraved bands and attaches to throne by means of decorated tabs..Mater
The mater and limb are of one-piece construction. The tab to hold the tympans in place is loacted at the bottom of the instrument, 180° from the throne.. Scales on the limb:| Type | Range & Units | Numbered | Geometry | Location |
|---|---|---|---|---|
| Degree | 0 - 360 Degrees of arc | Every 5 degrees | Circular, concentric | None |
Womb
The womb is engraved with a gazeteer, showing only the longitude and latitude of each city and arraged according to climate..