Manchester and Salford Police

Manchester and Salford Police was a police force in England from 1 June 1968 to 1 April 1974. It was created as a merger of the Manchester City Police and Salford City Police and covered the adjacent county boroughs of Manchester and Salford. It was amalgamated with parts of the Lancashire Constabulary and Cheshire Constabulary under the Local Government Act 1972 to form Greater Manchester Police.

...
Wikipedia