William R. (Bobby) Mann, GG (GIA), PG, is co-founder of the International Ivory Society (1996) and a collector of unusual ivories, tusks, teeth, skulls as well as natural and manufactured look-alikes. He has the largest collection of natural ivories, natural and manufactured look-alikes available for hands-on teaching. Since 1996 he has been teaching ivory identification through his talks, seminars and hands-on workshops. Bobby is also the manufacturer of Ivory I.D. comparison kits. Bobby is a Graduate Gemologist (GIA) (1982), a (PG) Professional Gemologist Columbia School of Gemology (1983) and ivory identification specialist. Formally retired as Captain of the Washington DC Fire Department after 28 years of service, he is also past president of the National Capital Area Chapter of the International Society of Appraisers and president of the Washington, DC Chapter of the Gemological Institute of America Alumni.