Items

• 

  Rock Dusting
• 

  Lincoln Hill Coal Tipple

  ca 1936
• 

  Lime Plant: Chestnut Hill
• 

  A Study in Angles
• 

  Charcoal Blast Furnace

  1937
• 

  Steel Works

  1937
• 

  Paving Block Cutters

  ca 1936
• 

  Casting the Great Telescopic Disc for the Mt. Palomar Observatory–Pouring Glass into the Mould December 2, 1934

  1934
• 

  Melting Brass: Oil Furnace Pouring Brass with High Zinc Content, Ajax Metal Co.

  1936
• 

  Men from the Works

  1934
• 

  Casting the Great Telescopic Disc for the Mt. Palomar Observatory–Ladling Glass from Melting Furnace December 2, 1934

  1934
• 

  Steel Works on a Rainy Night

  1934
• 

  Bituminous Coal Tipple and Cleaning Plant

  1934
• 

  Steel Works on Monongahela River

  1933
• 

  Pittsburgh at Night
• 

  Electric Welder

  1937
• 

  Quarry Hole

  ca 1940
• 

  The Old Mine Mule: The Miners

  1934
• 

  North Scranton Culm Bank

  1939
• 

  Cornwall Iron Ore Pit

  1935
• 

  Brick Plant in Winter (Closing Time)

  ca 1935
• 

  Scotia Iron Ore Washery

  1936
• 

  Sand and Gravel Works

  1936
• 

  Train Shed: Union Station
• 

  Dredging on Monongahela River