Manufacturing companies put industrial exhibits in the Commerce and Industries Building and the Varied Industries and Food Products Building, on opposite sides of El Prado. Moreland Motor Truck Company in the Commerce and Industries Building showed how a new gasifier in its trucks could ignite a spray of distillate fuel and keep the engine going. In the Varied Industries and Food Products Building, Pioneer Paper Company subjected roofing paper to intense heat to illustrate its lasting qualities, Globe Mills Company baked bread, Genesee Pure Food Company packed products with the aid of machinery, and Towle Products Company made maple syrup and sugar inside a log cabin. Free samples given away by exhibitors ensured large crowds in front of displays.

The Southern California Counties exhibits were most like those of a country fair, with showcases of china painting, hemstitched aprons, an inlaid table made of 2,866 pieces of wood, cows made of creamery butter, and elephants made of English walnut trees, a five-acre Model Farm and bungalow, a Tractor Field and building, a Lipton Tea Plantation from Ceylon, and a five-acre International Harvester field, orchard and building bordered the Alameda.

More history on the exhibits by Richard Amero