The letterhead of J. H. Johnson, dealer in General Merchandise, Groceries, Boots, Shoes, Etc., in Hitterdal, Minnesota notes "country produce taken in exchange for goods. " The order is dated January 5, 1916 and is for Mark's Headache Tablets, Kill Pain, Mark's Lung Balsam, Toothache Drops, Epsom Salts, Peppermint and Petroline from the P. M. Mark Medicine Company of Fosston, Minnesota.