oel wrote:Hi welcome to the forum,
I believe it to be Portuguese silver, this particular assay mark for the city of Porto also known as Oporto, used 1843/1853.
The zig-zag line is made by the assayer to determine the silver fineness, I believe fineness could be above sterling standard (925/1000) and perhaps minimum 958/1000 (95.8% pure silver). Could you show us an image of the complete bowl and an clear enhanced image of the marks.
oel wrote:Thanks for the images, nice silver bowl, could you spell out the maker’s mark initials?
Perhaps other forum members will be able to tell you more.
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