Not sure if this belongs in Cookware, but I have some plates from my late mother and father that say "Lamberton Scammeil - made expressly for Marshall Field & Company" anyone know what this means?
You can also try the Cooking Forum, which has a lot more active users. Good luck!
This is an American china company which would make designs specificallyfor certain outlets or organizations, as well as for the general public. Google the name; you'll see many different patterns.