Steer with Johne's disease on the Charles Behr farm, Paynesville. The photo was probably meant to illustrate the test site in the shaved area on the steer's neck. A wattle and daub outbuilding is in the background. Notes on reverse of photo say: "tests made by Drs. [Clifford P.] Fitch and [Willard L.] Boyd" and: "Dunkin intradermal Johnin test." Fitch and Boyd were veterinarians in the School of Agriculture at the University of Minnesota. The Dunkin test was first publicized in 1928.