(undated, British Pathe)

London bus conductors are seen in training; AEC NS NS1643 (XU6182) is seen from behind - the mechanics of a bus are explained and changing a tyre is demonstrated then an AEC B-type (LF9417) Colin Read identifies this as B1722, which although a B was not a bus, but a lorry or special vehicle. Another is seen on a skid pan. Lastly two different LGOC Bs are seen on the road, one of them with licence plate xx8011. In the absence of a full registration, Colin notes this could be B1231 (LF8011), B2430 (LH8011) or B5015 (LU8011)