Stunning pictorial poster advertising a Portuguese farm. Lithograph printing by Thomas Barcelona.
Sulfur and wine - protagonists of these advertising posters of the first half of the twentieth century - form an inseparable binomial.Sulfur, mixed with other elements, such as lime and water, sprinkled on the berries, prevents diseases and fights pests.
Sodium arsenite is the sodium salt of metaarsenic acid. It is an active substance of phytosanitary product (or phytopharmaceutical product, or pesticide), which presents a fungicidal effect, and which belongs to the chemical family of arsenicals.