Limestone water Filter. Approx 800mm x 400mm. Three Brass labels on the outside. One contains the label 'No. 0'. Another circular plague contains the lettering. 'W.M.Whites Melbourne- Patent - Rapid Limestone Filter' . Another Contains the label ' Factory City Road, South Melbourne'. The metal tank has two brown handles and a brass tap at the base. Inside is a spherical limestone ball with a rod through the centre.W.M.Whites, City Road, South Melbournewater filter, limestone water filter, w.m. whites