Sunderland Lustre Ware Cup and Saucer

This was my other market buy. I've called it Sunderland Lustre ware, but I suspect it could have been made at many of the 19th century English potters. It has the number 102 in puce on the saucer. I havn't quite pinned down whether it's early or later in the 19th century. I am going to have to consult my new cup and saucer book!