Throne
The throne is of the compass bearing type made of gilt brass with s-shaped scroll work support(s) made of gilt brass. The throne is attached with a screwed base made of Gilt brass . The throne bears a magnetic compass on the front. The four cardinal points are indicated: "Septentrio", "Occidens", "Meridies", and "Oriens". The magnetic deviation is indicated by an arrow. On the back of the throne is a volvelle used to convert between a 24-hour and a 12-hour scale.Ring
The ring is of the ornate type (i.e. ornate ring, not simple) made of gilt brass.Shackle
Shackle of the square, ornate type (i.e. ornate box type shackle, frequently topped by a rotating pin)made of gilt brass. The ring is attached to the shackle via a rotating eye-pin.Mater
The mater and limb are of two pieces, screwed construction. . Scales on the limb:Type | Range & Units | Numbered | Geometry | Location |
---|---|---|---|---|
Equal hours | 1 - 12 Times of day | Every 1 hours | Circular, concentric | outer |
Degree | 0 - 90 Degrees | Every 10 degrees | Circular, concentric | outer2 |
Womb
The womb bears an ornate wind rose and Quadratum nauticum.
The womb contains 3 scales of the following types:
Type | Range & Units | Numbered | Geometry | Location |
---|---|---|---|---|
Windrose | N/A | Circular, concentric | None | |
Quadratum nauticum | 0 - 90 Degrees | Every 10 degrees | Box | None |
Windrose | N/A | Inner Circular, concentric | None |