Banded - plain
Banded ware, incorporating lines and bands of varying width, particularly popular in the 1920s. The examples here illustrate various Gray's designs from the 1920s through to the 1950s, incorporating techniques such as groundlaying (colour is dusted onto an oily surface), aerographing (colour is sprayed onto the surface using a gun), sgraffito (the pot's body colour is revealed when the surface colour is scratched away) and shaded banding (where variations in the pressure applied to the brush results in more or less colour being laid).
Link: Click image for larger version