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| Operator: | United Automobile | Fleet No: | BU539 |
| Chassis: | Bristol MW5G | Chassis No: | 152.025 |
| Body: | ECW B45F | Body No: | 11197 |
| Aug 59 | In service with United Automobile Services Limited, Darlington (BU539) |
| Nov 64 | Fleet number changed to U539 |
| Jan 69 | Fleet number changed to 2539 |
| Jan/Mar 69 | Converted to OMO |
| Apr 75 | Out of service with United Automobile Services Limited, Darlington (2539) |