Donated to the Municipality of Milan in 1937 by Marco De Marchi, the last owner together with his wife Rosa Curioni of Palazzo Moriggia, the philatelic collection preserved at the Civiche Raccolte Storiche consists of approximately 5000 sheets, mounted in 100 albums, in addition to 3 cases and others 169 sheets with finds selected for exhibitions.

For the high documentary value that distinguishes the collection, between 2015 and 2016 the Civiche Raccolte Storiche, in collaboration with theUSFI | Italian Philatelic Press Union, have started the digitization and cataloging of the entire collection which can be consulted on the site www.graficaincomune.comune.milano.it.

It is a significant set that testifies, using the postal system, the change of the country, from the series of small nineteenth-century states to the birth of the Kingdom of Italy. Sheet after sheet, he records the political and administrative evolution, often also reporting transitional phases, such as provisional governments or occupations.

The collection, in addition to giving us the Italian historical panorama, is also important for its artistic value (among the names identified also includes the Sicilian engraver Tommaso Aloysio Juvara) and technical, offering an overview of the nineteenth-century security press.