Railway stations in Sweden Public domain photograph of Swedish railroad, train station building, free to use, no copyright restrictions image - Picryl description
Two men sitting on a couch talking to each other. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
H98774 U.S. Copyright Office Copyright claimant's address: Chicago, New York, Washington. Two oval insets: one titled "Merchant Mill No. 2; the other titled "Labratory [sic] and Office." Copyright deposit; Geo. More
Significance: Soon after its founding in 1899, the Republic Iron and Steel Company acquired the existing Haselton blast furnace and subsequently built four blast furnaces. These blast furnaces produced pig ir More
Title and other information transcribed from unverified, old caption card data and item. George Grantham Bain Collection (Library of Congress). Caption card tracings: Aqueducts; Tunnels; Geogr.
Public domain scan of artwork related to technological or industrial history, free to use, no copyright restrictions image - Picryl description
A black and white photo of a group of people sitting at a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
A black and white photo of a group of men sitting around a table. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
A group of people standing next to each other. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Two men standing next to each other talking. Public domain portrait photograph, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain image of a coal mine, industrial facility, mining industry, early 20th-century industrial architecture, free to use, no copyright restrictions.
Picryl description: Public domain image of military vehicle, automobile, tractor truck, free to use, no copyright restrictions.
Public domain photograph of Pennsylvania in 1930s, free to use, no copyright restrictions image - Picryl description
Public domain photograph of Connecticut in 1930s, free to use, no copyright restrictions image - Picryl description
Picryl description: Public domain historical photo of Second World War, free to use, no copyright restrictions image.
Picryl description: Public domain image of a coal mine, industrial facility, mining industry, early 20th-century industrial architecture, free to use, no copyright restrictions.