These "Japan" pattern wares were done in imitation of the Asian ceramics, and were very popular with English manufacturers in the early 19th century. This design is in typical colors of iron red, green and cobalt blue, all enhanced with gilding. In the center is a delicate script monogram inside a gilt ring.
The mark is red painted "Spode" with pattern number 1645. While the fact that the central motif is a monogram indicates that this was a special order, the shoulder pattern is closely related to a Japan pattern plate shown in plate XII of Godden's "Illustrated Encyclopedia of British Pottery and Porcelain".
Size: Approximately 9.75" diameter, 1.875" deep.
Condition: Excellent, with only slight usage marks. No chips, cracks or repairs.
Note that I try to be conservative about condition descriptions, carefully noting any flaws. Of course, with antique items, there will be some signs of usage, and/or manufacturing defects. But overall, my customers have always been pleasantly surprised upon receiving their items, and of course, Returns are no problem if I happen to miss anything.