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| Operator: | Crosville | Fleet No: | KB84 |
| Chassis: | Bristol L6A | Chassis No: | 67.172 |
| Body: | ECW B35R | Body No: | 2936 |
| Jun 48 | In service with Crosville Motor Services Limited, Chester (KB84) |
| May 58 | Fleet number changed to SLA84 |
| 1962 | Out of service with Crosville Motor Services Limited, Chester (SLA84) |
| Oct 62 | Atomic Power Constructions Limited, London WC1 (51) (contractor) |
| Nov 65 | Nuclear Civil Contractors Limited, Trawsfynydd (9) (contractor) |