Contents: Age of Artifact Coding Index
Primary Key: CD_AGE
Columns:
| Name | Type | Size | Contents |
| CD_AGE | NUMBER | Integer | Age code |
| OLD_CODE | VARCHAR | 75 | Previously used age code |
| TEXT | VARCHAR | 100 | Age description |
Codes:
| CD_AGE | OLD_CODE | TEXT |
| 0 | 0 | Not Recorded |
| 10 | IMM | Immature |