View of several workers using compressed air to blow glass into the shape of a mold at a Glass Works factory in New Jersey. This photograph is one of a set of five stereographs detailing the production of blown-glass bottles.
“Using Compressed Air to Blow Glass into Shape of a Mould.” Underwood & Underwood, n.d. Underwood & Underwood Stereographs of Manufacturing Industries. Science History Institute. Philadelphia. https://digital.sciencehistory.org/works/m326m172d.
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