Ault Pottery Vase. Circa 1900-1910. Ault Pottery was formed in 1887 by William Ault in Derbyshire, England. Simple flower design in the Art Nouveau style. This particular vase is marked 'Ault, Swadlincote, Leadless Glaze'. This is a reference to the leadless glazes adopted around this time to protect the health of pottery workers. A few minor marks, no chips. Height 22cm.