| 505-0031-904 | DIRECTIONAL GYRO MODEL 205-1BL |
| 505-0031-905 | DIRECTIONAL GYRO MODEL 205-1C |
| 505-0031-906 | DIRECTIONAL GYRO MODEL 205-1CL |
| 505-0031-907 | DIRECTIONAL GYRO MODEL 205-2A |
| 505-0031-908 | DIRECTIONAL GYRO MODEL 205-2AL |
| 505-0031-909 | DIRECTIONAL GYRO MODEL 205-2B |
| 505-0031-910 | DIRECTIONAL GYRO MODEL 205-2BL |
| 505-0031-911 | DIRECTIONAL GYRO MODEL 205-2C |
| 505-0031-912 | DIRECTIONAL GYRO MODEL 205-2CL |
| 505-0031-916 | DIRECTIONAL GYRO MODEL 205-1BC |
| 505-0031-926 | DIRECTIONAL GYRO MODEL 205-6BL |
| 505-0031-927 | DIRECTIONAL GYRO MODEL 205-1D |
| 505-0031-928 | DIRECTIONAL GYRO MODEL 205-1BLF |
| 505-0031-929 | DIRECTIONAL GYRO MODEL 205-1BF |
| 505-0031-930 | DIRECTIONAL GYRO MODEL 205-7BL |
| 505-0031-931 | DIRECTIONAL GYRO MODEL 205-1BLD |
| 505-0031-933 | DIRECTIONAL GYRO MODEL 205-1BLR |
| 505-2A | HORIZON 504-0032-904 |
| 505-2B | HORIZON 504-0032-902 |
| 505-2BG | HORIZON 504-0032-916 |
