This is a Royal China Company Currier & Ives "Old Grist Mill" 10.5" dinner or chop late.
This plate is blue and white and features an image of wagons with horses and oxen unloading at the Grist Mill by the river. On the back, it reads "Royal China Co. Sebring Ohio Americana Currier & Ives. Conventional and Microwave Oven Approved, Dishwasher Safe USA."
This plate is in very good pre-owned condition and would make a nice addition or replacement to a set.