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"United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives, c. 1900-1936, PSS 23, Detre Library and Archives, Heinz History Center"
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Title
16th St. Bridge (Mechanics Street Bridge)
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
January 18, 1911
Type
Image
Identifier
20180220-hpichswp-0042
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
A. M. Chalfant Company Plant
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
June 10, 1919
Type
Image
Identifier
20180220-hpichswp-0200
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Abandoned Trestle by Cats Run
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
March 21, 1913
Type
Image
Identifier
20180220-hpichswp-0110
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Alicia Mines, Coal and Coke
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
June 12, 1919
Type
Image
Identifier
20180220-hpichswp-0209
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Dam 1 Down
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
December 9, 1912
Type
Image
Identifier
20180220-hpichswp-0095
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Dam 2, Looking Downstream
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
April 4, 1910
Type
Image
Identifier
20180220-hpichswp-0017
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Dam 2, Looking Upstream
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
April 4, 1910
Type
Image
Identifier
20180220-hpichswp-0018
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock 2
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
December 9, 1912
Type
Image
Identifier
20180220-hpichswp-0097
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock 3
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
December 11, 1912
Type
Image
Identifier
20180220-hpichswp-0098
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock Upper Guide Wall Foundation Construction
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
September 27, 1920
Type
Image
Identifier
20180220-hpichswp-0227
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock and Dam 1
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
September 26, 1911
Type
Image
Identifier
20180220-hpichswp-0072
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock and Dam 1 and Heinz Plant (2)
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
August 1, 1924
Type
Image
Identifier
20180220-hpichswp-0254
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock and Dam 2 Construction
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
ca. 1910-1930
Type
Image
Identifier
20180220-hpichswp-0289
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock and Dam 2 and P.R.R. Bridge
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
December 6, 1915
Type
Image
Identifier
20180220-hpichswp-0175
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock and Dam 3 in Use
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
September 18, 1924
Type
Image
Identifier
20180220-hpichswp-0257
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock and Dam 4 Cofferdam, Quarters, and Power Plant
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
August 17, 1920
Type
Image
Identifier
20180220-hpichswp-0223
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock and Dam 4, Upstream
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
July 13, 1917
Type
Image
Identifier
20180220-hpichswp-0195
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock and Dam 5 Construction
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
June 10, 1927
Type
Image
Identifier
20180220-hpichswp-0280
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Lock and Dam 5 Office Building and Storage Yard
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
August 17, 1920
Type
Image
Identifier
20180220-hpichswp-0224
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
Title
Allegheny River Portion of Pittsburgh Harbor
Creator
United States. Army. Corps of Engineers. Pittsburgh District.
Date
July 13, 1913
Type
Image
Identifier
20180220-hpichswp-0131
Collection
United States Army Corps of Engineers, Pittsburgh District Glass Plate Negatives
Contributor
Detre Library & Archives, Heinz History Center
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