| code | size (mm) | price (£) | old code |
| 30-22 | 38 x 25 | 18.00 | MF41 |
| 30-23 | 75 x 50 | 24.00 | MF42 |
| 30-24 | 110 x 75 | 28.00 | MF43 |
| 30-25 | 150 x 100 | 38.00 | MF44 |
| 30-26 | 220 x 150 | 44.00 | MF45 |
| 30-27 | 300 x 200 | 52.00 | MF46 |
| 30-28 | 450 x 300 | p.o.a. | MF47 |
| 30-29 | 650 x 450 | p.o.a. | MF48 |
| 30-30 | 800 x 600 | p.o.a. | MF49 |