Antique Art Nouveau Silver Plated Small Tray by Christofle Circa 1900s RARE

For your consideration is a silver plated tray by Christofle with the Gallia rooster mark. in the the Art Nouveau Style. Circa 1900s  9" x 4.25" (inches) Approx. Plating is still bright, apologies for any reflections, surface marks, signs of age and use. Exceptionally rare piece. I also have a second one listed with its own photographs. 

A London dealer has an identical single dish listed for £390, so this is competitively priced.