In 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 artifacts, their biology, rarity, value,
and how to conserve and restore them. Included in this comprehensive
guide are hundreds of images of actual collectibles ranging from knives
to buttons.