Patent model. Steam engine, Ericsson, patent no. 41612. ER*308672.

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Photo credit: © History of America / Alamy / Afripics
License: Licensed
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Keywords: america, american, americana, ancient, archival, archive, artefact, artistic, bygone, cultural, culture, editorial, engineering, era, gallery, heritage, historic, historical, history, industry, museum, nostalgia, nostalgic, object, photography, states, traditional, united, usa, vintage, work