"seated in his curule chair"

Aureus Macrinus Coin: Reverse (right) shows magistrate sitting on curule chair
GNU Free Documentation LicenseAureus Macrinus Coin: Reverse (right) shows magistrate sitting on curule chair - Credit: CNG Coins
The curule chair was a seat that marked the status of a magistrate with imperium. It was usually made of ivory, with no back and curved legs forming an X. It was foldable, designed to be easily transportable.

Drawing of a Curule Chair
Public DomainDrawing of a Curule Chair - Credit: Wikimedia Commons