Harry H. Hamm Harry H. Hamm published view-cards of the Great Lakes region from 1907-1923. Logos: This vintage postcard shows the Republic Iron and Steel Works in Youngstown, Ohio. This vintage postcard shows the Carnegie Steel Works (Ohio Works) in Youngstown, Ohio. This vintage postcard shows West Federal Street in Youngstown, Ohio. This vintage white border postcard shows the Methodist Episcopal Church in Mansfield, Ohio.