I don't see anything about DIN in the 69 copy of The New Science of Skin and Scuba, don't see it in the 66 edition of Basic Scuba either?
N
Come on Nemrod… not this again…
![Roll Eyes :rolleyes: :rolleyes:](http://www.mysmiley.net/imgs/smile/rolleye/rolleye0001.gif)
You are basically narrowing the definition of vintage as “it has to be American or perhaps more specifically it had to have been popular in Kansas”.
![Winking ;) ;)](https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f609.png)
Per your definition my 1957 Drager DIN valves are not vintage because they were not in one US published book. I also have Poseidon tanks with DIN valves from the same era and several catalogs from the 60’s showing DIN fittings. Yes back in the 50’s, 60’s, and 70’s it was not called DIN, but it is the same fitting.
I was using 5/8” European threaded fitting (A.K.A. DIN) in the early 70’s and when I tried to get an adapter for a Scubapro Mk-5 (from California), they had no clue as to what I was talking about.
BTW, the only company, which was still in existence, and quit making double hose regulators in 1973 was US Divers. All the other manufacturers were making double hose regulators at least into the late 70’s, which includes Dacor (at least to 79), Nemrod (into the early 90’s), and several European companies. I am not sure when Healthways actually disappeared.
Here is a catalog from the 60’s. The U-1225 DIN to yoke adapter has not changed much since the 60's.
![DIN1977_3.jpg](http://i17.photobucket.com/albums/b60/wavejockey/DIN1977_3.jpg)
These valves were available in the 50’s.
![DIN1977_4.jpg](http://i17.photobucket.com/albums/b60/wavejockey/DIN1977_4.jpg)