The agency hired top technicians to arise with creative glaze recipes and ornamental recommendations. The first step forward was made by artist Laura Fry, who invented air-brushed backgrounds. Its most successful Art Nouveau lines come with the floral "Iris Glaze" pieces and blurry-searching "Vellum Glaze" items. Louis Comfort Tiffany also made pottery, but unlike his art glass and stained glass lamps, here
is one arena during which he was not a hit. He never lined his Favrile
pottery with painted images; he wanted their shapes and glazes to talk for themselves, even though his later pieces featured relief-molded imagery such as cattails, flower clusters, or fish swimming in a stream. Perhaps the most incredible American potter of this era is George Ohr, a Biloxi, Mississippi, artist, who made shockingly modern and brightly coloured pots with paper-thin walls that turn, twist, and ripple in gorgeous biological shapes. Ohr dug the clay himself, formulated his glazes, or even built his pottery and kiln. From begin to finish, his 10,000-some "mud babies" were the work of his own hand. Toward the tip of his career, he chose to forgo glazes, letting his bizarre bisque shapes speak for themselves. William Grueby also created a unique American line of Art Nouveau pottery when he open his Grueby Faience Co. in Boston with the goal of pursuing "biological naturalism.