Pair of porcelain cups. They are a porcelain material. They are white with blue design. I cannot find anything specific on the maker's mark. The best identification I have is that the mark closely resembles marks used by smaller Arita kilns or individual artisans who produced ware during the late Edo period through to the modern era. The mark could be a kiln or artisan signature. They are a pretty set of cups for any collector.
