Significance of The Bag with Sham's Pedigree

Signor Achmet ties a bag around Sham's neck. The bag contains information on Sham's pedigree and amulets to protect the stallion. Signor Achmet later decides that the bag with the pedigree and amulets will be safer with Agba, and he takes it off of Sham and puts it around Agba's neck. Many months later, a cruel man takes the bag away from Agba and, when Agba gets it back the pedigree is gone, and Sham has nothing prove the high pedigree he comes from.