Description
An O2/nitrous oxide apparatus with all appropriate controls and pressure gauges in good order. The gauges are circular, 5cm in diameter, and marked O2 and N2O respectively. Both instruments read from 0 to 2500 lb/sq. in. Cased in grey painted metal, with a black plastic carrying handle, and with metal clamps, etc. for retaining the Oxygen and Nitrous Oxide gas bottles at the rear of the casing.
The whole machine has been modified at some time in the past by bolting the base to a heavy wooden cradle which elevates the apparatus by 7cm