RESEARCH REACTION: While looking through the book I discovered that this sculpture was made by a Cameroon artist. The two figures in the back are twins, the court guardians. They are both fertility symbols as well. There is a male (on the left) and a female (on the right); the male holds a drinking horn, and the female hold an offering bowl. Njoya's footrest is made to look like armed guards which stand over images of councilors, which symbolizes wisdom. The serpents on the seat symbolize his strength in battles. Thrones like this were kept inside the palace and moved by throne bearers when the king held audiences in front of the palace.
O'Riley, Michael Kampen. "The Pacific." In Art Beyond the West, 260-261. 2nd ed. Upper Saddle River, NJ: Pearson Prentice Hall, 2006.FIGURE 1: