CAT or LEPORD tongue out Stamped on outside of band?

[Aurora1234]

Hello- I am very curious if anyone knows the maker of this antique ring. The hallmark is on the outside of the band and is of a cat or lepord with its tongue out. No other hallmarks are present. (including gold content) The ring is platinum and gold with rose cut diamond accenting an old miner in the center.

Any info would be so wonderful!! Thank you

https://www.dropbox.com/s/qjujrlch64bais8/photo%202.JPG

[Aurora1234]

The dropbox link is a clearer picture.