German rings of the period should be marked '800'
or '900' in European fashion. I would guess that
this is a so-called biker ring.........
the 925 silver mark was used mostly since After the 2nd World War ended...as said, European silver of the era was mostly 800,830,835,850. A good silver piece may be 900, but almost never 925.
"Much that once was, is lost. For none now live who remember it."
Ok thank you, you have been very kind.
Not the best of photos but from what I can see its a