Circles
| Type | Labelled | Style | Notes |
|---|---|---|---|
| Equator | Plain line. | ||
| Tropic of Cancer | Plain line. | ||
| Tropic of Capricorn | Plain line. |
| Tympan | 1a |
| Latitude | 51°0' |
Lines
| Type | Labelled | Description |
|---|---|---|
| Meridian line | ||
| Horizon rectus | ||
| Horizon obliquus | ORI OBL (Latin in Roman Capital script) | |
| Unequal hours | HOR 1 INE. (Latin in Roman Capital script) | (Modern), Plain line style. |
| Horoscopic (great) houses | DOMVS I (Latin in Roman Capital script) | (IIII), Plain line style. |
Inscriptions
| Transcription | Translation | Type |
|---|---|---|
| LATI LI | Latitude 51° | Latitude |