Charming scallop shell by Annemarie Davidson, known for her Southern Californian modernist abstract copper enamels. 4¼ inches diameter. Davidson was influenced by noted enamelists Curtis Tann, Doris Hall, and Mary Sharp. Davidson “is responsible for some of the finest enamels in the second half of the 20th Century.” Her logo is on the back. Her work is in museums and private collections worldwide.