3 results filtered with: Ralston Purina Company
- Pictures
A grain of wheat showing ingredients of whole wheat cereal. Colour lithograph by the Ralston Purina Company, 1962.
Ralston Purina Company.Date: [1962?]Reference: 679583i- Ephemera
Ralston : keep them in class 1-A / Ralston Purina Mills.
Ralston Purina CompanyDate: 1918- Pictures
Charts illustrating the findings of a study which showed that many diets were deficient in whole grain wheat cereal, as manufactured by the Ralston Purina Company. Colour lithograph, 1944 (?).
Ralston Purina Company.Date: [1944?]Reference: 679581i