Black was eager to show the world his discovery. Dr. Heinrich Neckles, a friend of Black, later recalled: “One night he came to my office very excited, to show the precious tooth of homo pekinensis. He wanted me to advise him about the safest method to take the invaluable find to England (where he was going shortly) safe against loss or theft. I suggested a brass capsule with a screw closure and a ring at the top, with a strong ribbon through it, so he could wear it around his neck. We had a good Chinese mechanic in the Physiology Department who made a very nice capsule for him and he was as happy as a little boy” (Hood 1964, p. 90).