Our friends at the National Fish & Wildlife Forensics Laboratory have researched & written this 35-page book with the goal of developing a visual & non destructive way for wildlife agents to distinguish different ivory types at ports of entry here and abroad. The most accurate, interesting and best illustrated book of its type. 28 photos of tusks/teeth and cross grain views of elephant, mammoth, walrus, whale, narwhal, hippo and warthog ivories as well as natural ivory substitutes. A must for collectors & dealers, this newly released third printing is only - $12.