The hall of the council of ten was where "justice" was handed out by the council and the doge. If found guilty, you could be swept away to the dungeons below through the hidden door (5th wooden panel from center) and never be heard from again.
The inside of an anonymous letter box - accessible from the inside of the hall of the council of ten. Presumably for last minute info during a "trial."
The outside of the (lionish) letter box.
