9942. Mayo Clinic and Foundation, Rochester, Minn: Exterior view of early office shared by Mayo brothers and their father
9943. Mayo Clinic and Foundation, Rochester, Minn: Exterior view of office shared by Mayo brothers and their father from 1901-1914
9944. Mayo Clinic and Foundation, Rochester, Minn: Exterior view- 1914 office that became Mayo Clinic
9945. Mayo Clinic and Foundation, Rochester, Minn: Exterior view- 1928 Plummer Building (tower in center)