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environmental aspects

history of pennsylvania

new york public library

pennsylvania

petroleum chemical industry

petroleum industry

pittsburgh

refinery

robert dennis collection of stereoscopic views

standard

standard refinery

public
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Standard Refinery, Pittsburgh, Pa. New York Sterecope Card.

Standard Refinery, Pittsburgh, Pa. New York Sterecope Card.

New York stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Standard Refinery, Pittsburgh, Pa. New York Sterecope Card.

Standard Refinery, Pittsburgh, Pa. New York Sterecope Card.

New York stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Standard Refinery, Pittsburgh, Pa. New York Sterecope Card.

Standard Refinery, Pittsburgh, Pa. New York Sterecope Card.

New York stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More

Standard Refinery, Pittsburgh, Pa. New York Sterecope Card.

Standard Refinery, Pittsburgh, Pa. New York Sterecope Card.

New York stereoscopic card. Robert Dennis's stereographs collection includes more than 72,000 stereoscopic views organized primarily by geography. The collection bears the name of the native New Yorker who ass... More