A color photograph of two laborers walking through a cabbage field while a bag of Muriate of Potash is in the foreground. It is indicated that an extra 100 pounds was used.
A black and white negative of a man standing in a potato field and holding a sign that reads, '600# [600 pounds] 20% of Manure Salts in [? illegible] Addition to [illegible] Fert [fertilizer].'
A black and white negative of a man standing in a potato field and holding a sign that reads, '600# [600 pounds] [illegible]' during a fertilizer experiment.
A color photograph of three men standing in a field of crops behind a sign that reads, 'Official Fertilizer Demonstration conducted in Cooperation with S.C. Produce Association and N.V. Potash Export-My. Inspection Invited.'
