I - Diana Ephesia

The letter "I" is crafted as an allegory of the Ottoboni heraldic emblem. A female figure with a human bust rises from a banded globe encircled by a laurel wreath placed on the ground. Two smoking censers rest on small altars at her sides. She wears a crown with three towers and holds three statuettes in one hand while supporting the double-headed crowned eagle with the other. The lower part of her body flares upwards, adorned with protruding dog-like heads—perhaps a reference to Diana of Ephesus.