Access documents pertaining to the Opera's income, subdivided typologically, according to the selections available in the menu in the left navigation bar.

This topic covers the sources of revenue for the Opera, primarily public in nature. An exception are the incomes deriving from sales of wood, marble, etc., treated under the topic materials.

Information regarding the mechanics of collection of sums due the Opera, such as objects in pawn, cash deposits and the matter of exemptions, are treated in the subcategory "guaranties".