Tudalennau sy'n cysylltu â "Delwedd:GENERAL EASTERN VIEW OF DOROTHY SIX BLAST FURNACE COMPLEX. (Jet Lowe) - U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA HAER PA,2-DUQU,3A-54.tif"
Appearance
Mae'r tudalennau isod yn cysylltu â Delwedd:GENERAL EASTERN VIEW OF DOROTHY SIX BLAST FURNACE COMPLEX. (Jet Lowe) - U.S. Steel Duquesne Works, Blast Furnace Plant, Along Monongahela River, Duquesne, Allegheny County, PA HAER PA,2-DUQU,3A-54.tif:
Ceir 1 eitem.
- Duquesne, Pennsylvania (cyswllt ffeil) (← dolenni | golygu)