Now if you want to talk about a primitive anesthesia mask how about something so simple you probably have the items to make it in your kitchen drawer !
Back in the mid 1950's or so when I was a child I had my tonsils removed. In those days they used Either to send you off to lala land !
They used a wire screen, like a strainer and put it over your mouth and nose. The strainer had a cloth over it and they would apply either drop by drop and asked the patient to count backward from 100 so they could tell when you were totally out of it. Don't light up any matches or cigarettes or the patient could have an explosion !
When ever I hear about anesthesia " Mask " this is what comes to my mind as I experienced this as a child. Mention this to any recently graduated medical professional and I bet they never heard of it.
I don't think they had such a thing as an " anesthesist " back then, the nurses did it !
I would NOT suggest you try this at home, without knowing the administration quantity of Either you could put someone out Permanently ! Also the fumes are quite " Explosive " . You can probably find more info by doing a websearch.
Anyone else out there in medfetland remember this procedure ? I wonder if ti is done any more anyplace in the world like 3rd or 4th world developing countries ?