At the end of 1873 or beginning of 1874, the young Gaudí contacted with Salvador Pagès i Inglada, a natural of Reus who was promoting a working cooperative society in Mataró, a utopian social project to which also there was linked his companion of Reus's Piarist School the poet Bartrina. The Obrera Mataronense had begun its activity so soon as the Revolution of 1868 legalized the labour societies. It had started being employed on July 1, 1869 with 107 associates and 6 looms of second hand at a place rented of Gràcia. In 1870 it had suffered a serious crisis for the yellow fever and for the strike of three months supported by the First Working Congress, of anarchistic orientation. In 1873 it had 45 looms and 83 associates, and it had just acquired an area in Mataró to build a factory and a colony of property. Then, Gaudí drew the flag of the cooperative society. There does not remain any detail of this drawing. Gaudí continued linked for many years the Obrera Mataronense and later he drew the second flag, which there would embroider the sisters Moreu.