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Pittsburg 
Name: Pittsburg
Collection: Vogel Slide Collection
Site: UNIDENTIFIED
Unit: 4
Piece: 5-23
Structure: Open Hearth Furnace
Photo credit: Robert M. Vogel
Photo date: 1984-10-00
Notes: Picture taken from an Underwood and Underwood stereograph of open hearths in Pittsburgh, Pennsylvania c. 1905. Site of photograph is unknown.