Oval
| Porcelain sizes inches |
Porcelain sizes cm |
Color codes |
Black and white codes |
| 4 3/8 x 6 | 11 x 15 | O1C | O1NB |
| 4 x 5 | 10 x 13 | O2XC | O2XNB |
| 3 5/8 x 4 3/4 | 9 x 12 | O2C | O2NB |
| 3 1/4 x 4 | 8 x 10 | O3C | O3NB |
| 2 7/8 x 3 5/8 | 7 x 9 | O4C | O4NB |
| 2 3/8 x 3 1/8 | 6 x 8 | O5C | O5NB |
| 2 x 2 3/4 | 5 x 7 | O6C | O6NB |
| 5 1/4 x 7 1/4 | 13 x 18 | O7C | O7NB |
| 7 1/8 x 9 5/8 | 18 x 24 | O10C | O10NB |
| 9 1/2 x 11 3/4 | 24 x 30 | O11C | O11NB |
