Lead glazed pottery, part first (common clays) : plain glazed, sgraffito and slip-decorated wares (1907)
Barber, Edwin Atlee, 1851-1916, Pennsylvania Museum and School of Industrial Art · Philadelphia : Pennsylvania Museum and School of Industrial Art · leaf 27
Vegetable Dish, with Bird and Tulips. Made by John Leidy, Montgomery County, Pa., 1796. Flower Jar, writh Fuchsia Motive and Inscription. Drinking Cup, with Foliage Decoration.
Pottery
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.