Enameled Prussian Long Service Clasp

[kasle]

I would appreciate your opinion on this enameled version of Prussian LS clasp model 1825.  What do you think, does this one represent 3rd class or 2nd class?
Thanks in advance.

[BlackcowboyBS]

I have to confess, that the circle marks or scratches on the backside do irritate me and why is the enamel on the front side black? 

[Daniel Krause]

Hello,

 

its a 3rd class.

The 2nd class would be plain silver.

 

Best,

Daniel

[VtwinVince]

I don't see any problem with this piece.

[kasle]

Thank you  very much for your answers.

[CRBeery]

Those look like the type of circles you see on many of the original u-boat badges. I wonder if they share a common maker?