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| Operator: | United Automobile | Fleet No: | L21 |
| Chassis: | Bristol B | Chassis No: | B437 |
| Body: | United B32F | Body No: | 1650 |
| 1929 | In service with United Automobile Services Limited, Darlington (L21) |
| Out of service with United Automobile Services Limited, Darlington (L21) |