Mardon Son & Hall of Bristol (the printers and packers) were acquired by the Imperial Tobacco Company and became responsible for the production of most of their cigarette cards.During the early 1930s they also became involved in the manufacture of playing cards - both patience and standard sizes - for the 'Wills Scheme'. The big tobacco companies were wooing the public with free gifts. Wills, of Imperial Tobacco, tucked two miniature cards into every packet of ten Goldflake or Capstan cigarettes, and each complete set posted to Wills's Bristol establishment entitled the sender to a pack of normal sized cards. These packs often had attractive pictorial back designs. John Waddington manufactured a large proportion of the full-sized packs, and De la Rue also produced a certain number, and the scheme enabled the firms to thrive at a time of severe economic downturn. The market became saturated with playing cards during the early to mid-1930s as a result of this scheme.
A history of Mardon's can be found here. Photos of the works can be seen here. The photo shown below can be seen here where the caption reads: "A division of Imperial Tobacco, they appear to have made cards almost exclusively for the cigarette token market, which flourished during the 1930s. Some advertising packs can also be found, e.g. Players Navy Cut cigarettes. A reciprocal arrangement may have existed with Waddingtons regarding playing card production during the early 1930s."