Hi Earl, Your very welcome! I cannot seem to find your original post now, ugh! But, If I'm remembering correctly "St. Cloud" was French "Paste porcelain" factory of the 16th and 17th centuries. BUT, St. Cloud was also a place! That is what I was inferring, if you follow? There were several companies in competition all in nearby areas, all trying their hands at "French Paste Porcelain" Vincennes, and Chantilly and several others. I've also seen your mark before, and if I could find your post, or see your photo's again, I might be able to confirm that your maker is in St. Cloud France.
While I don't think yours is as early as the original St. Cloud factory, I do think it certainly is Antique. I know that many companies were competing with the dark brown glazes and featuring the hand painted florals and other similar designs. It was not just Rookwood, but a whole lot of both small and large factories!
My guess is that yours is probably mid to late 19th century. Also, if you look carefully and feel the base of your piece, does it feel more cold, and rough, or more of a softer smooth type of glaze? Because there is also a possibility that your piece is actually "Faience". I am confused on that point!
So, if you can link me back to, or just email me photo's I can try and confirm exactly what you have there! I'm one who loves a good mystery, but a solved one is even better! Avndh@aol.com