American interest: a large pearlware mug late 18th/early 19th century

American interest: a large pearlware mug late 18th/early 19th century, printed in black with the American eagle holding a banner in its beak bearing the legend 'Pluribus Unum', beneath the 13 colony stars, all above a banner inscribed 'James Leech', the reverse with a simple floral spray, 12.4cm.