The German Silver bell krantz is in good condition, as it is a harder alloy than brass, and so it would not be dented as easily. There is also a plate above the coat of arms, possibly of zinc, which has the manufacturer information:
O. F. Miether
Musikinstr. Fabrik
Braunschweig.
The Prussian Arms in an Oval shield displays a Spread Eagle wearing a Crown with F.R. to center. The eagle carrying a Sword and a Scepter in either claw.
A romantic item from the terrible First World War.