This image reproduces the Graeco-Roman stomachion square according to the proportions provided by a 17th c. manuscript in the collection of the German National Library in Berlin, which conveys the Arabic translation of part of an ancient Greek treatise on geometry attributed to Archimedes, the Stomachion. The edition of the texts contained in the manuscript with German translation from Arabic was prepared in 1899 by the German philologist Heinrich Suter.