Bone, Ivory, and HornIn the pre plastic era everything was made from natural materials, often by skilled craftsmen. The materials that they used are now often rare and easily misidentified. Are they made from bone, ivory, horn, tortoiseshell shell, skin or scales, or some other now forgotten exotic material? This technical book will help collectors, antique dealers, museum conservationists, and frequenters of flea markets to know more about the vast array of those