THE THREE DOMINANT FORMS IN METALSMITHING […] At present, there are but three basic volumetric forms dominating the work of metalsmiths, the spherical (usually in its most practical form, the domical), the cylindrical, and the cubical. […] The possibilities for further variations on them are all but exhausted, there being little chance to express new and unusual ideas within the framework of such limited choices. As a result, much of twentieth-century metalsmithing has relied on surface enrichment rather than formal development for its originality.