Vehicle Numbering
The numbering of individual vehicles and details of when units were built are shown in the table below.
| Phase | Type | Unit Nos. | Years Built | DMBSO | TCK | TSK (*TRB) | DMBSO | 
|---|---|---|---|---|---|---|---|
| Prototypes | 4 Cep | 7101-7104 | 1956 | 61033-61039 (odd) | 70037-70040 | 70033-70036 | 61034-61040 (even) | 
| 4 Bep | 7001-7002 | 1957 | 61041-61043 (odd) | 70041-70042 | 69000-69001* | 61042-61044 (even) | |
| Phase 1 | 4 Cep | 7105-7110 | 1958 | 61229-61239 (odd) | 70235-70240 | 70229-70234 | 61230-61240 (even) | 
| 7111-7153 | 1958-59 | 61304-61388 (even) | 70303-70345 | 70260-70302 | 61305-61389 (odd) | ||
| 4 Bep | 7003-7012 | 1958-59 | 61390-61408 (even) | 70346-70355 | 69002-69011* | 61391-61409 (odd) | |
| Phase 2 | 4 Cep | 7154-7202 | 1960-61 | 61694-61790 (even) | 70552-70600 | 70503-70551 | 61695-61791 (odd) | 
| 7203-7204 | 1961 | 61868-61870 (even) | 70043-70044 | 70241-70242 | 61869-61871 (odd) | ||
| 7205-7211 | 1963 | 61948-61960 (even) | 70653-70659 | 70660-70666 | 61949-61961 (odd) | ||
| 4 Bep | 7013-7022 | 1961 | 61792-61810 (even) | 70601-70610 | 69012-69021* | 61793-61811 (odd) | 
Read more about this topic: British Rail Class 411
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