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 53
26. Slip-Decorated Dish (15 inches). German, 1629. Museum No. ’05-442. 27. Slip-Decorated Dish (12 inches). Polychrome Designs on Black Ground. ^^^^h^^i^^^^^^^n^DroughM^Pennsyh^inia.
Pottery
Internet Archive · Getty Research Institute · Public domain (published before 1931). Free to use for anything.