American Royalty First Lady China. Bread & Butter or salad plate. Like new!

This piece has a “Made In Japan” sticker on back and appears not to have been used. I am not able to confirm if indeed pattern is made in Japan. Back says First Lady American Royalty Very Fine Porcelain 1004. Could be salad or bread and butter size. I measure 7 inches but could be a bit smaller. Has beautiful pink and grey border with pink and grey flowers, silver rimming. It does not look like it was ever used. vintage.