The Compañía Anunciadora Cuba S.A. represents a fascinating example of an original commercial venture in the Cuba of the Roaring Twenties. Based in Marianao, a seaside and residential municipality on the outskirts of Havana, the company specialized in "Anuncios Giratorios Patente Sigler": a patented system of rotating advertising signs that constituted an innovation in the field of urban signage. This share of $25, Series D, was issued on 25 July 1928, at the height of the economic prosperity of the Cuban Republic under the government of Gerardo Machado. Outdoor advertising was then experiencing considerable growth in Cuban cities, driven by the development of American tourism and the rise of consumer industries