Original poster from China made in 1975, printed on thin paper. Some minor imperfections. This beautiful poster, whose theme is the sea, the fishermen and the science of marine elements, illustrates the research and scientific approach that prevails in China in many aspects of food production. The science of cultivation contribute to the quantitative and qualitative improvement in aquatic harvest, so important for China’s substance and food level. The image shows the scientific control of algae and kelp.