Hello Raven and welcome to the forum,
I see the mark of M.H Wilkens and Son of Bremen, Germany with an 800 parts per 1000 silver fineness mark. I would expect to see the German standard post 1886 mark of a crescent moon beside a crown. Can you confirm if it is also present?
Style wise, I would place it 20th century, possibly late 1st quarter or early 2nd but this is just a personal opinion so wait and see what others have to say...