Claude Manometer

Manometer used to measure liquid pressure during lumbar injections, in spinal anesthetic and for endocranial pressure measurement (liquid pressure during spinal tap). Grading scale from 0 to + 1. 000 mm H20 and from 0 to – 400 mm H20. Chassis made of chrome-plated plastic. Brass inner workings. Protection ring and dial lens made of plastic.