. The plaque is part of the Religion theme in the Willett Collection of Popular Pottery.  c0000This oval earthenware plaque is modelled with a profile portrait in relief on a blue ground of the Rev. John Wesley. The plaque is part of the Religion theme in the Willett Collection of Popular Pottery.  c0000This oval earthenware plaque is modelled with a profile portrait in relief on a blue ground of the Rev. John Wesley. The plaque is part of the Religion theme in the Willett Collection of Popular Pottery.  