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| Operator: | Crosville | Fleet No: | MB331 |
| Chassis: | Bristol K6A | Chassis No: | 74.056 |
| Body: | ECW L27/28R | Body No: | 2525 |
| Mar 49 | Crosville Motor Services Limited, Chester (MB331) |
| Mar 49 | On hire to London Transport Executive, Westminster - Based at West Green |
| Apr 50 | Returned to Crosville Motor Services Limited, Chester |
| Apr 50 | In service with Crosville Motor Services Limited, Chester (MB331) |
| May 58 | Fleet number changed to DKA331 |
| 1966 | Out of service with Crosville Motor Services Limited, Chester (DKA331) |
| May 66 | F Cowley, Salford (dealer) |
| S & J R Cubbins, Farnworth (dealer) |