These are typical Italian packs: all three have 40 cards with numbers 1-7 in each suit and three court cards: a jack, a horseman and a king.
The games to play with these packs are Scopa and Briscola.
Dal Negro Piacentine 109 and Modiano Piacentine 81/25. These packs (Dal Negro on the left, Modiano on the right) follow the same pattern and generally look the same. Both are clearly based on the same pictures, but the art is not exactly the game. The Modiano pack has stronger lines and perhaps more vivid colours, while the Dal Negro pack has slightly finer details in the pictures.