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Scotch machine, Washington, D.C., September 8. This machine, exhibited...
Public domain photograph of laboratory, scientist, free to use, no copyright restrictions image - Picryl description
Scotch machine, Washington, D.C., September 8. This machine, exhibited...
Public domain photograph of Washington DC, free to use, no copyright restrictions image - Picryl description
Scotch machine, Washington, D.C., September 8. This machine, exhibited...
A black and white photo of a man in a lab, Library of Congress Harris and Ewing collection Title from unverified caption data on negative or negative sleeve. Harris and Ewing Photos. Date (year) based on date ... More
Scotch machine, Washington, D.C., September 8. This machine, exhibited...
A black and white photo of a woman in a factory, Library of Congress Harris and Ewing collection Title from unverified caption data on negative or negative sleeve. Harris and Ewing Photos. Date (year) based on... More