The image refers to the page of the manuscript of the Magistrato dei Censori - Leges constitutiones atque decreta, containing the provisions relating to the retail sale of fruit, vegetables and dairy products.

The date of Institution of the Censors is unknown, although a reference to this office was already contained in the reform laws of 1363, issued under the rule of the then doge Gabriele Adorno.

The Magistrate regulated the retail and wholesale trade of both foodstuffs and other product categories, with extensive powers of control over quality, quantity and prices. He also intervened on "weights and measures", defining the units of measurement, keeping the prototypes and exercising checks that they were not altered.