Gretl and Leo Wollner met and married in the late 1940s while studying textile design under Eduard Josef Wimmer-Wisgrill, founder of the fashion division of the Wiener Werkstätte. Leo later worked for architect Josef Hoffmann. Through the 1950s, the couple became known for their work with Pausa AG, a German printer known for innovative, high quality designs. When Barbara Rodes took over the textile division of Knoll International, she initiated a rich collaboration with both Pausa AG and the Wollners. The Wollners developed new printing techniques for Knoll, including the use of oversized screens so large they required four workers to manipulate—this enabled the production of floor-to-ceiling prints with no repeat. These large prints were introduced by Knoll as the Three Meter Prints collection: Rivers, Roads, Sails, and Trails. This piece, Rivers, had the additional complication of being printed on velvet with gradations of color mixed as the printing was underway, resulting in a spontaneous, watercolor effect. Rivers, together with Roads, another textile proposed for acquisition, would be the first designs by the Wollners in the museum’s collection.