Contents: Disk type
Primary Key: Code
Parent Table: none
Columns:
| Name | Type | Size |
| CODE | Number (Integer) | 2 |
| LABEL | VARCHAR | 30 |
Code:
| CODE | LABEL |
| 0 | Not recorded |
| 1 | Unperforated Ceramic Disk |
| 2 | Unperforated Stone Disk |
| 3 | Perforated Ceramic Disk |
| 4 | Perforated Stone Disk |