Saggar atmosphere, or concentrate the effects of salts, metal oxides and other materials on the surface of their ware. Some pots may be carefully prepared for saggar firing. One method creates a smooth surface covered with clay slip, terra sigillata, which responds particularly well to the saggar technique. This slip covering may be burnished to achieve a gloss. Prepared pots are nestled into saggars filled with beds of combustible materials, such as sawdust, less combustible organic materials, salts and metals. These materials ignite or fume during firing, leaving the pot buried in layers of fine ash. Ware produced in filled saggars
Guitar Craft While the 1867 Legend is no longer manufactured, it influenced the design of the Guitar Craft Pro Model of Guitar Craft Guitars, which has been endorsed by Fripp. Besides the Ovation 1867 Legend, other Ovation shallow-body guitars are widely used in Guitar Craft and recommended for use in related performing groups, such as the Guitar Circle of Europe. The Ovation's truss rod can offset the increased tension of the NST strings, protecting the neck from bending. Guitar Craft aimed at personal development, not only through guitar playing and music appreciation, but also through improved living. Students were offered instruction in