This is the information i received from the Spode Museum Trust, The plate with the printed Spode Copelands China mark is decorated with pattern number Y. This is a printed pattern on a power I believe its (POWDER) blue ground which was first introduced c. The plate shape is known as'Stafford. There also appears to be an impressed mark on the bottom of the plate a letter A and number 38. These plates are in excellent condition and appear to hardly, or never been used.
I currently have 12 of them. Copeland Spode Dinner plate Powder Blue! Mint condition" is in sale since Thursday, June 27, 2019. This item is in the category "Pottery & Glass\Pottery & China\China & Dinnerware\Spode\Porcelain".
The seller is "kass2ak" and is located in Eagle River, Alaska. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, Ukraine, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Chile, Colombia, Costa rica, Dominican republic, Panama, Trinidad and tobago, Guatemala, El salvador, Honduras, Jamaica, Belize, Bermuda, Oman, Uruguay, Russian federation.