sentences:  The site employed around 2,000 people during the war in the manufacture of anti-tank and anti-aircraft weapons; one of the main weapons built at the factory was the Bofors 40 mm gun.Laura Knight's wartime painting "Ruby Loftus Screwing a Breech Ring" was created at the site, with factory worker Ruby Loftus being the subject.The Newport Royal Ordnance Factory began construction in April 1940 on the empty site of a former allotment site near Corporation Road, Newport.