need help with hallmarks

[chowda47]

I've tried to figure this out. It's a large tea service platter or plate. I assume it's plated. Thanks for any assistance you can offer.

http://uploader.chipguide.com/chimage.php?image=/photo.jpg

[dognose]

Hi,

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Trev.

[chowda47]

[dwma]

I can't help you with the maker, but it's certainly plated. You can see the copper showing through the design where it was polished.

[HobbySilver]

This looks like old shefield plate not sure of the maker, there was a lot of silversmith partnerships in shefield during the 18th and early 19th century,
the crossed keys were used by several silversmiths during that period