[note 3] The demands of the South African War led to major developments and the scene of operation was moved to Coventry to a site of some sixty acres.
[note 5] In 1903 these companies merged into the newly blended armaments and shipbuilding business, Cammell Laird, of Birkenhead and H H Mulliner joined their main board.
The main workshop at the Coventry Ordnance works was claimed by The Times in 1909 to cover a greater area under its single (110 feet to the apex) roof than any other factory in the country.
[7] H H Mulliner's carriage building business, now part of Cammell Laird, built a few bodies for Daimler before it was decided the future lay in making relatively large production runs for motor companies that did not have their own facilities.
[8] An early contract was gained from Calthorpe, then a booming company, leading to probably the entire output going to them and eventual close financial and corporate links between the two.
One of its last efforts was an adventurous coach body appearing on a modified Guy Warrior chassis , registered 647BKL, displayed at the 1958 Commercial Motor Show and now preserved.
After the war, body-building for cars resumed with Aston Martin, Armstrong Siddeley and Triumph joining the list of customers.
Standard-Triumph had, by then, a shortage of body-building capacity and this led them to buy the company in 1958, by which time Mulliners were building 700 car bodies each week.
[8] On 7 December 1960, a shock announcement by Standard-Triumph International, which was about to be sold to prosperous trucks and buses manufacturer Leyland Motors Limited, revealed that the factory would close.
"Mulliners Limited, one of the oldest body firms in the motor trade, employs about 800 workers having recently laid off some 750 as redundant because of a shortage of orders".