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20 résultats pour : allegheny

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The Point, Pittsburgh, Pa., between 1900 and 1915. Creator: Unknown.
HRM23A64_262

The Point, Pittsburgh, Pa., between 1900 and 1915....

Allegheny Co. [County] Soldiers' Memorial, Pittsburgh, Pa., between 1910 and 1920. Creator: Unknown.
HRM23A45_223

Allegheny Co. [County] Soldiers' Memorial, Pittsbu...

Plant of the Westinghouse Air Brake Co., Wilmerding, Pa., c1905. Creator: Unknown.
HRM23A45_001

Plant of the Westinghouse Air Brake Co., Wilmerdin...

Blast furnace at Carnegie-Illinois Steel Corporation mill in Etna, Pennsylvania, 1941. Creator: Alfred T Palmer.
HRM22A78_377

Blast furnace at Carnegie-Illinois Steel Corporati...

Iron ore piles and blast furnaces, Carnegie-Illinois Steel Corporation mill, Etna, Pa., 1941. Creator: Alfred T Palmer.
HRM22A78_376

Iron ore piles and blast furnaces, Carnegie-Illino...

Blast furnaces and iron ore at the Carnegie-Illinois Steel Corporation mills, Etna, Pennsylvania, 19 Creator: Alfred T Palmer.
HRM22A78_378

Blast furnaces and iron ore at the Carnegie-Illino...

White-hot steel pours like water from a 35-ton electric furnace, Allegheny Ludlum Steele..., (1941?) Creator: Alfred T Palmer.
HRM22A78_386

White-hot steel pours like water from a 35-ton ele...

Bessemer converter (iron into steel), Allegheny Ludlum Steel[e] Corp., Brackenridge, Pa., (1941?). Creator: Alfred T Palmer.
HRM22A78_387

Bessemer converter (iron into steel), Allegheny Lu...

Ladle of molten iron is poured into..., Allegheny Ludlum Steele Corp., Brackenridge, Pa., (1941?). Creator: Alfred T Palmer.
HRM22A78_384

Ladle of molten iron is poured into..., Allegheny ...

Back into production go these carloads..., Allegheny Ludlum Steele Corp., Brackenridge, Pa., (1941?) Creator: Alfred T Palmer.
HRM22A78_385

Back into production go these carloads..., Alleghe...

Drill press operator, Allegheny Ludlum Steel[e] Corp., Brackenridge, Pa., 1941?. Creator: Alfred T Palmer.
HRM22A78_383

Drill press operator, Allegheny Ludlum Steel[e] Co...

The Property of John P. and Catharina Schuring, Franklin Town, Allegheny County..., 1883. Creator: Ferdinand Arnold Brader.
HRM22A42_392

The Property of John P. and Catharina Schuring, Fr...

Farman Sport, 1924. Creators: Henri Farman, Maurice Farman, H.& M. Farman Aeroplane Company.
HRM21A89_057

Farman Sport, 1924. Creators: Henri Farman, Mauric...

Cliff View, Summit of Alleghenies, c. 1895.
HRM21A24_006

Cliff View, Summit of Alleghenies, c. 1895.

'Falls of the Blackwater', 1872. Creator: Frederick William Quartley.
HRM19F28_314

'Falls of the Blackwater', 1872. Creator: Frederi...

'South Pittsburg and Alleghany City', 1874. Creator: W.H. Morse.
HRM19F28_030

'South Pittsburg and Alleghany City', 1874. Creat...

The "Packsaddle," Allegheny Mountains, Pa.', c1897.
HRM19F12_409

The "Packsaddle," Allegheny Mountains, Pa.', c1897...

Dragon Gorge, New River, West Virginia, USA, c1900. Creator: Unknown.
HRM19D48_418

Dragon Gorge, New River, West Virginia, USA, c1900...

The 'Packsaddle', Allegheny Mountains, Pennsylvania, USA, c1900. Creator: Unknown.
HRM19D49_045

The 'Packsaddle', Allegheny Mountains, Pennsylvani...

'The Bridge of the Three Sisters', 19th century. Artist: Unknown.
HRM19D07_318

'The Bridge of the Three Sisters', 19th century. A...