NEW YORK — Bold and colorful, Gaudy Dutch pottery stands out admirably but also marries well with other hand-painted wares and folk art. Made in England by Staffordshire, Derby and Worcester potters for the American market between 1810 to 1820, Gaudy Dutch had a short production run — only 16 patterns have been identified — but its popularity endures. Its heyday was in the 1980s and 1990s, but collectors still seek out patterns and forms, and prices have rebounded in recent years.