| Code Figure | Meaning |
|---|---|
| 0-76 |
Reserved |
| 77 |
Rectangular |
| 78-87 |
Reserved |
| 88 |
Elliptic |
| 89-98 |
Reserved |
| 99 |
Diamond |
| 100-191 |
Reserved |
| 192-254 |
Reserved for Local Use |
| 255 |
Missing |