Help with these hallamarks

Can anyone help identify the following hallmarks

From the top:

  • 800 standard German silver
  • electroplate
  • possibly French, but if silver should have a load more marks
  • electroplate by I S Greenberg & Co of Birmingham
  • repeat of second mark


Thank you so much for your help. Can you look at these as well.

The last one is either electroplate or a base metal alloy made by Wallingford Co Inc of Wallingford CT.

This is silver 800, from Austria-Hungary, the hallmark is named Diana-Head.

Thank you so much for your response