Technical Marks of Orders of the Auspicious Clouds

These marks usually hide behind the central obverse tablet.

Fortunately (or unfortunately - depends on the perspective taken) screws often become lost.

Mark 0

Another example of mark 0.

 

Additional examples of mark 0.

 

Mark 2

 

But not every order of the Auspicious Clouds has such mark.
Example of unmarked specimen.