Page "Ara Pacis" Paragraph 18

After them follows the collegium of the quindecimviri sacris faciundis, also identified by the incense box carried by a public slave among them.

Although the name suggests this college has exactly fifteen members, the size of the college has grown to 23, including Augustus and Agrippa, who appear on the South Frieze.

The other twenty-one members are present here.

Two very badly damaged figures in the middle are split by a gap.

From photos, the gap appears to affect a single figure, but as Koeppel, Conlin, and Stern have proven, in-site examination reveals that one is a foreground and the other a background figure.