Image scanned from black and white negative labeled Armour Fertilizer Works, Presque Isle, Maine, September, 1936. Two men pose near a plow, which is drawn by two horses. A potato-laden field surrounds the team, and a sign nearby reads Grown with Armour\u27s Big Crop Fertilizers. There are trees, and a vast barn, in the background.https://digitalcommons.library.umaine.edu/bert_call/2843/thumbnail.jp