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| Operator: | United Automobile | Fleet No: | BU273 |
| Chassis: | Bristol LS5G | Chassis No: | 119.135 |
| Body | ECW B45F | Body No: | 9805 |
| 1957 | United Automobile Services Limited, Darlington (BU273) |
| Jun 58 | In service with United Automobile Services Limited, Darlington (BU273) |
| Nov 64 | Fleet number changed to U273 |
| Jan 69 | Fleet number changed to 2273 |
| Out of service with United Automobile Services Limited, Darlington (2273) |