| 5045 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| 5046 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| 5047 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MARK 1 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MARK 11 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MARK 12 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MARK 2 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MARK 3 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MARK 4 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MK 1 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MK 11 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MK 12 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MK 2 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MK 3 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| GHP 20 MK 4 | K0207 | HALE HAMILTON (VALVES) LIMITED |
| K.250 | K0207 | HALE HAMILTON (VALVES) LIMITED |