National Supply Co., Pittsburgh, PA

---

Size: 1263px × 1582px
Photo credit: © Bygone Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: archive, chains, derricks, drillbits, drilling, employees, historic, history, men, oil, oilwells, pennsylvania, petroleum, photograph, pittsburgh, rigs, roughnecks, vintage, workers