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Cast iron urinals were developed in the United Kingdom, with the Scottish firm of Walter McFarlane and Company casting urinals at their Saracen Foundry and erecting the first at Paisley Road, Glasgow in October 1850. By the end of 1852, nearly 50 cast iron urinals had been installed in Glasgow, including designs with more than one stall. Unlike Rambuteau's columns, which were entirely open at the front, McFarlane's one-man urinals were designed with spiral cast iron screens that allowed the user to be hidden from sight, and his multi-stall urinals were completely hidden within ornate, modular cast iron panels. Three manufacturers in Glasgow, Walter Macfarlane &amp; Co., George Smith (Sun Foundry) and James Allan Snr &amp; Son (Elmbank Foundry), supplied the majority of cast iron urinals across Britain and exported them around the world, including Australia and Argentina.