Antique relish tray on wooden stand

this item is for sale. it is a 4 piece relish tray with a wood stand on the bottom as you will see it is engraved maqde in the usa 300 s or 8 or B or all 3. this is in excellent condition with no chips. I'm thinking it is possibly california pottery. My mother had an aunt that lived out there and it may have been a wedding gift from her. but thats a long shot of a guess. I would like to know a little about this and its value.

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