The description on the front of the card:
Carnegie Steel Works (Ohio Works) Youngstown, Ohio
Estimated Date: 1907-1915
Collection: The Erie, Pa. Series
No. in Series: 2221
Era: Divided Back Era
Publisher: Harry H. Hamm, Erie, PA.
Harry H. Hamm published view-cards of the Great Lakes region from 1907-1923.
Read more about Harry H. Hamm
Rights Info: Public Domain