Unknown Affiche Ancienne Set of 4 original vintage food focusing on beet sugar production published by the United States Beet Sugar Association. 1. Extracting Beet Sugar - featuring a step-by-step illustration of sugar extraction, including washing, slicing, diffusion, carbonation, filtering, evaporation, crystallising, centrifuging, drying, and packaging, showing the beet sugar extracting by-products. Very good condition, folds as issued. Country of issue: USA, designer: Unknown, size (cm): 59x44, year of printing: 1960s; 2. Quick-energy food - featuring illustrations of how beet sugar aids in sensible diets, including fruit, meats, baked goods, and cereal, with an inset of boys playing baseball, caption below reads - A sound diet builds healthy, active people. Very good condition, folds as issued. Country of issue: USA, designer: Unknown, size (cm): 59x44, year of printing: 1960s; 3. Growing Sugar Beets - Men and Machines Work Together, featuring illustrations showing ploughing, preparing, planting, thinning, cultivating, irrigating, and harvesting of the beets, and the use of by-products as silage, molasses production, and livestock fattening. Very good condition, folds as issued. Country of issue: USA, designer: Unknown, size (cm): 59x44, year of printing: 1960s; 4. Natures' Most Efficient Plant - showing the leaves and its magnified cross-section, the root, and a comic showing the work of photosynthesis. Published by the United States Beet Sugar Association. Very good condition, folds as issued. Country of issue: USA, designer: Unknown, size (cm): 59x44, year of printing: 1960s.