I do see the blue paint on the cockade, but I also think I can see some red peeking through there. Not sure what to make of it. For those interested the correct plate for this is a silver guard type eagle with "Fuerst" motto, adorned with an enamelled star of the Ernestine House Order. I have no pics of a surviving example, but rest assured, it would be beautiful!
Ernestine House Order Star