Duchy of Lancaster. The arms granted to Manchester two years earlier had a similar supporter for the same reason. The motto was Integrity and Industry. On 15 September 1959 the corporation received the grant of an heraldic badge: Within a collar argent fimbriated Or set thereon four roses gules barbed and seeded proper and as many letters S also gules alternately a hurt thereon issuant from a wreath of sallow a demi lion also argent. The "collar of SS" was derived from the insignia of the Duchy of Lancaster, while the red rose of Lancaster was from Lancashire. The sallow leaves referred to the derivation of the name "Salford" from "Sallow Ford". The lion was taken from the crest. Police force As required by the Municipal Corporations Act, one of the first actions of the newly created town council was to appoint a Watch Committee to establish a police force, Salford Borough Police, and appoint a chief constable. In 1928 the force introduced police boxes to the streets of Salford. Following inspection by the Metropolitan Police, similar boxes were erected in London. The Police Act 1964 allowed for the compulsory amalgamation of police forces, and on 1 June 1968 the Manchester and Salford city constabularies formed the Manchester and Salford Police. Salford Corporation Transport In 1875, the corporations of Manchester and Salford gained powers under the Tramways Act 1870 to construct a horse tramway network. Services started on 17 May 1877, with a private company, the Manchester Carriage Company (later Manchester Carriage and Tramways Company) operating services on a 21-year lease. The lease was eventually extended until 1901, with Manchester taking over their portion of the network on 27 April and Salford on 2 May. The lines were quickly electrified, with work completed by 1903, and the system was extended to Worsley in 1906. Through services were operated over the lines of neighbouring municipalities, reaching Middleton and Swinton and Pendlebury In 1920 Salford commenced motorbus operation, and the first tram routes were withdrawn in 1932. The last tram went out of service on 31 March 1947. By this time the undertaking had been renamed Salford City Transport. On 1 November 1969 SCT was merged into the SELNEC Passenger Transport Executive. References County Borough of Districts of England abolished by the Local Government Act 1972 County Borough of Salford County boroughs of England