Vintage JH Emerson Co Iron Lung Respiratory Pressure Vacuum Gauge cm Water
This authentic rare piece of mid-century medical history is a vintage respiratory pressure-vacuum gauge manufactured by the renowned J.H. Emerson Co. of Cambridge, Massachusetts. Featuring a beautifully preserved analog dial face, this instrument cluster specifically monitors pressure in "Centimeters of Water"—a specialized medical measurement increment utilized primarily in early pulmonary and respiratory ventilation systems. Used with the Iron Lung
The glass-lensed dial clearly showcases its dual-An excellent, uncleaned historical artifact ideal for steampunk displays, medical curiosity cabinets, or vintage industrial salvage collections. The internal needle rests squarely on the zero line, and the underlying text remains highly legible.purpose diagnostic scale: a positive pressure range reading up to 160 cm H2O, balanced by a negative pressure vacuum zone indicating up to 15 cm vac. The face prominently displays the legacy "J.H. Emerson Co. / Made in USA" maker's mark. Structurally, the instrument is housed in its heavy black industrial casing, complete with its vintage metal mounting bracket and an original paper asset tracker inventory label ("8101" / "A") affixed to the perimeter.
Selling as Pictured 081326BS