This is the hallmark of the north German silversmith firm Hansen. They delivered the Royal house of the Hohenzollern.They began in the Schlossgarten in Kiel in 1814, and were taken over after 4 generations, in 1994, by another top German firm Koch and Bergfeld.They are known for superb designs and quality.

Conclusion: Looking from left to right.

1)  925 means the standard of silver is 925/1000 that is Sterling.

2) The Half Moon and Crown symbol is the sign for made in Germany after 1884, and was compulsory.

3) Handarbeit, this means hand crafted.

4) E H are the letters of the Hansen silversmith firm.

Summary:

This is a hallmark of a piece of hand crafted sterling silver made in Germany before 1994 by the silversmith firm Hansen in Kiel.