Help deciphering marks on tray

Hi, I have not been able to identify the markings on this round silver (plate, I believe) grape motif tray. Would appreciate any help. Thanks.


These are “pseudo hallmarks”; i.e. they could be taken by the unwary to be British hallmarks, not necessarily with any intent to deceive but more to give an air of respectability. They are often associated with North American silversmiths or Chinese export ware. The material may be silver, but not necessarily sterling.

Phil