Pittsburgh Promotes Progress
- Caption: Pittsburgh Promotes Progress: World's Iron and Steel Center--75,000 Employes [sic].
- Notes: One of a series of stamps issued by the Pittsburg Dispatch. Lower left-hand corner of image missing; digitally repaired. Size: approximately 2" x 1.5" (5cm x 4cm).
- Date: Approx. 1911-1922.
- From the Collections of the Pennsylvania Department,
- Carnegie Library of Pittsburgh.