There were at least two Philip Oriel companies; one dealt in sterling and one dealt in Sheffield silver plate - it is unknown (to me) whether these were the same smith or company.
The other Philip Oriel company shows up in the archives at the duPont mansion and collection, Winterthur. That one was the reproduction arm of an antiques dealer with whom the duPonts had much trade, it was called The House of Philip Oriel and was marked as such.
The Sheffield Philip Oriel mark has the lion and unicorn supporting an oval containing a sans-serif capital P.
Your item's mark is similar to part 1 of a three-part mark on a sterling tazza that was sold at auction in December 2007. Part 2 is an almost-square containing a lion at right, holding a monogram and part 3 is below that, in sans-serif, stating "Sterling".
Have you determined whether this is sterling or not? could we have a picture of the entire object?
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LOL! how foolish of me - of course it says sterling in the bottom part of the picture!
since it does not say House of Philip Oriel, my opinion is that it would be the previously mentioned Philip Oriel Company that sometimes has the third component mark - rather than the Sheffield one that is always marked as silverplate.
unfortunately I don't know anything much beyond what it says in several auction listings, which is as much as I have shared with you.
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