The Islands » Newport » Harbor Area » Rhode Island » Theodore R. Helme Block Theodore R. Helme Block Details 1860s, Dudley Newton(?). 148–160 Spring St. This mansarded block has recently been restored more accurately than the Telephone Building, with an ornate metal railing along its roofline, typical of its Second Empire style but often missing today from buildings of that period. Writing Credits Author: William H. Jordy et al.