Hudson's Soap Powder, was the first satisfactory and commercially successful soap powder and was made in Liverpool by Robert Spear Hudson. He was also an innovator in using advertising, commissioning striking images from professional artists and paid for publicity , something which few other businesses did, and as such Hudson's soap became a household name. Horse, steam and electric tramcars, print periodicals and chemist shops carried his advertisements. This sign was manufactured by Patent Enamel Co Ltd was a company built in 1889 at Selly Oak, Borough of Birmingham, West Midlands, England, United Kingdom. The business was the first factory specifically devoted to enameled iron sign making. It had twelve furnaces for fusing the enamel, two scaling furnaces, and a large printing room, plus a huge area for steampipe drying. The company also smelted its own enamels and colour oxides. It is believed that the factory was decommissioned and demolished in the 1960's.the first factory specifically devoted to enameled iron sign making. It had twelve furnaces for fusing the enamel, two scaling furnaces, and a large printing room, plus a huge area for steampipe drying. The company also smelted its own enamels and colour oxides.The factory was decommissioned and demolished in the 1960s.The signage demonstrates the increasing demand for domestic soap products and new forms of advertising. The soap business was apart of the flourishing export trade between Australia and Britain during the height of the British Empire.Enamel advertising sign for Hudson's soapflagstaff hill, warrnambool, maritime museum, hudson's soap, advertising signage, patent enamel co ltd, selly oak, borough of birmingham, robert spear hudson