The body is Plainsman H450. Both have a black engobe (L3954N) applied to the insides and half way down the outside during leather hard stage (the insides are glazed with Ravenscrag GR10-C talc matte). The outer glaze on the left has 1% iron added to the base matte recipe. The one on the right has no iron. Notice how differnent the glazes are over the black engobe.
|Materials||Iron Oxide Red|