 This was followed in 1911 when the Trenton plant saw a massive investment in equipment to manufacture and machine heavy forgings.In 1912 SCOTIA established the Eastern Car Company and opened a massive factory to build railway cars on the Trenton site adjacent to the steel mill and forge operations, reputedly the largest factory under one roof in the Dominion of Canada.The Eastern Car Company produced its first boxcar for the Grand Trunk Railway in August 1913, with GTR #105000 being the first of a 2,000 car order.