Uploaded March 2024 | Updated September 2026, 2 weeks ago

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Today's Mystery Object is a Fleischer Spinal Manometer, patented in 1921 and used until the 1970s to measure inter cranial pressure (ICP) via lumbar puncture (AKA spinal tap).

SOURCES:

woodlibrarymuseum.org/museum/fleischer-spinal-manometer
nah.sen.es/vmfiles/abstract/NAHV5N32017105_113EN.pdf
nytimes.com/1983/01/14/obituaries/andrew-fleischer-101-stethoscope-developer.html
ebay.com/itm/296200178308