Original von delgado
Bernhard,

Nice review. I might to use this..

There is at least another meters first dial with the long "f" in the depth markings.. the coronet is like the first version of 600/200.

photos courtesy of diverdick,

compared to your scan
Yes Ed,... that's the right one,.. i was missing and meaning in my topic.
Philipp has a couple...
Then there are the images of the very early ones without minute-markers,.. but i never understood if they are 100% genuine.... ???