Public Message: Metal casing embossed with the manufacturer’s details on the Langlaagte Stamp Battery on Main Street in Marshalltown, Johannesburg, South Africa

<p dir="ltr">A close-up view of the central section of the Langlaagte Stamp Battery, showing heavy cast-iron stamp housings and vertical metal rods framed by large dark wooden beams. The metal casing is embossed with the manufacturer’s details: “ROBEY & CO. / T. B. JORDAN, SON & CO., MANS. / LINCOLN & LONDON.” Rows of bolts secure the wooden braces, and the worn surfaces of both wood and metal reveal the machinery’s age and industrial character. This photograph is an example of an official public message (see Zeisel, 2006).</p>