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Keywords: Beach Pneumatic plan.jpg Scan by Joseph Brennan from an original copy of Scientific American for March 5 1870 Scientific American - March 5 1870 issue Scientific American PD-old PD-US Original upload log en wikipedia Beach_Pneumatic_plan jpg 2007-02-28 04 32 JoeBrennan 1936×1764× 1278040 bytes <nowiki>Scan by Joseph Brennan from an original copy of Scientific American for March 6 1870 that I own </nowiki> Beach Pneumatic Transit 19th-century diagrams Scientific American issues |