Part of my job is taking care of the medical gasses for the hospital. I had to change the CO2 cylinders and found a couple that are interesting. One was tested in 1923 and been in use since.
The other was tested in Nazi Germany in 1937 and after WW2 the swastika on the German tested cylinders was made into a window pane. You can see that the swastika is stamped deeper than the other lines.
I wonder how many other things last as long as these cylinders?
The other was tested in Nazi Germany in 1937 and after WW2 the swastika on the German tested cylinders was made into a window pane. You can see that the swastika is stamped deeper than the other lines.
I wonder how many other things last as long as these cylinders?