sentences:  The concrete wheat silos were constructed in 1964 and stand where once there were stables for Priday, Metford's heavy horses.The City Flour Mills are probably the last remaining building at the Gloucester Docks which is still used for the purpose for which it was originally built.The mill originally consisted of several sets of grinding stones and some wheat cleaning machinery but, with the movement of the industry towards roller milling and the need to maintain competitiveness, steel roller mills were installed in 1883 by Vincent Reynolds and John Allen.