Attributed to Seaham Pottery – plate 1
Attributed to Seaham Pottery – plate 2
The mug and the plaque have a transfer from the same plate. However, it appears that copper plates from Seaham moved to Carr's pottery in North Shields at some point, so it's possible the plaque was made by the latter pottery.
The details below from the three items above, respectively. The eyes of the pirate are closer together on the first detail from the jug.