Pathe’s New York Recording Studio (1916) and Pathé Recording Machine (1917)

A rare 1916 glimpse into Pathé’s New York studio. The recording device, not visible here, employed oversized cylinders from which the disc masters could then be dubbed in any diameter or format using a pantograph (which imparted the rumble and thumps so characteristic of Pathé discs).

American Pathé executives were notoriously touchy about letting outsiders see the recording apparatus, but the French company released this remarkable photo of the device in 1917, showing the equipment in use to record heartbeats for medical-training records: