In a letter from 11 November 1449, Antonio Jacopo Marcello used the expression "triumphorum genus" for a deck that was produced sometime between 1418 and 1425. It was commissioned by the duke of Milan, Filippo Maria Visconti, painted by Michelino da Besozzo and described in an accompanying text by Martiano da Tortona. The deck itself is lost, but Marcello provided a copy of da Tortona's description which offers details about the deck and a cursory explanation of how it is played. It likely had a total of 60 cards (four kings, forty pip cards and sixteen trumps). The forty-four plain-suited cards used birds as suit signs and the trumps presented sixteen Roman gods. In two suits, the pip cards are in reverse order as in many of the oldest card games.