This is an ironstone ware soup cup with saucer.  It is marked on the bottom but I just can't read it.  There is some crackling and one tiny nick on the saucer edge.  The cup has 2 small  chips on the bottom edge.  They look like hotel or railroad dinnerware.  3 1/8" high X 3 5/8" across the cup.  The saucer is 6" across.