BACHMANN > Non Passenger Stock > BR Mk1 - High Security Full Brake (Super BG)
Many Mk1 BGs (and GUVs) were converted to carry postal traffic in a more secure vehicle fitted with roller shutter doors.
| Ref No | Year | Livery | Running No/Name |
| 374-775 | 2005 | RES | 94451 |
| 374-775A | 2012 | RES | 94474 |
| 374-776 | 2005 | RES | 94520 |
| 374-776A | 2012 | RES | 94462 |
| 374-777 | 2005 | Royal Mail | 94420 |
| 374-777A | 2012 | Royal Mail | 94433 |
| 374-778 | 2005 | Royal Mail | 94486 |
| 374-778A | 2012 | Royal Mail | 94472 |