Niloak is “kaolin” spelled backwards, referencing fine clay used near Benton, Arkansas. Founded in 1909 by Charles Hyten and Arthur Dovey, the studio is best known for its patented Mission Swirl design made by mixing colored Arkansas clays on the wheel and is part of our American Art pottery collection.

The Mission Swirl effect was achieved by blending different-colored raw clays, rotating the piece to swirl the colors, and selectively glazing the interior for functionality. The exterior’s matte finish reveals the pattern in soft, earthy tones, straight from the clay itself.

Authentic Niloak pieces are marked with an impressed "Niloak" or "Hywood by Niloak" stamp. The Mission Swirl line was produced between 1909 and 1946, with later Hywood castware introduced during the Depression.

Collectors prize original Mission Swirl items from the 1910s to the 1920s. Early forms, vases, pitchers, and ceramic pottery planters with rich earth-tone swirls in blue, brown, and red tones are especially valued for their artistry and rarity.

All Niloak listings include free U.S. shipping, detailed condition notes, such as “excellent original condition”, and authenticity, condition, and satisfaction guarantees to ensure confidence with every acquisition.