In 1910 the first china products from the Noritake company left Japan for the U.S. The first reported U.S. registry for a Noritake back stamp for importing is 1911. One of the first patterns to be produced was "Sedan". Noritake marks have been very well researched and allow us to date these pieces with some accuracy. For example, in 1953 the letter "N" for "Noritake" in a wreath replaced the long used "M" in a wreath. The “M” mark with “Made in Japan” was first used about 1921, variations of this one used until 1953. We don't have a name for the pattern of this piece, but the rams head appears to have been used in more than one pattern, and while unusual it is not a rare feature.
Unlike many other antiques and collectibles made of wood, fabric or paper, porcelain is virtually impervious to environmental damage from water, heat or ultraviolet light, Oriental porcelain that has been salvaged from shipwrecks three hundred years old is scarcely effected by by the ordeal. Porcelain is however very prone to damage from improper display or storage. Plates should never be displayed on wire wall hangers, which cause chipping and iron stains. In terms of value, the Ram's head cake plate would currently sell at auction in the $80.00- $125.00 range.