Antique flow blue pottery tankard / pitcher with pewter

This is so old and so great! A large blue and white stoneware tankard or pitcher with a pewter look top with shell designs repeating around the top. Possibly was a silver plate?? It has a pub scene. A large man stands drinking from a vessel while carrying a basket of bottles, A wooden keg, and a wall shelf is on the other side of the tankard. This is a nice piece of flow blue pottery and it measures 11" tall. This is an estate item, with a story that his (Him being 80) mother was offered $2,000 for this item in 1978, and she refused it. There is no mark on the bottom. There is crazing of course, due to the age. If you need more photos let me know. No chips or cracks. This truely is a wonderful piece. I wish I knew who the maker was. This will be a real find for the collector who can identify it properly.