Hi, I have a plate marked Homer Lauglin Made in USA, royal china warranted 22 kt. gold on the back. It also has a C45 M with another symbol on the back. It is pale yellow with gold floral scroll all around the plate with a floral bouquet in the middle. I think it is an eggshell pattern but not sure. I also have a pie server and 4 other small plates. I have had this for about 15 years. Just would like to know more. Any help would be appreciated. Thanks I included a photo below.