The Panino con Prosciutto Toscano is the one in the cluster you can taste the seasoning on. Where the Emilian and Friulian legs are cured with salt and patience alone, the Tuscan ham is salted harder and rubbed with a coat of pepper, garlic, and hill herbs before it air-dries, and it comes out frankly salty, savoury, and assertive rather than sweet and mild. That is by design and it explains the pairing: this ham is eaten on pane sciocco, the unsalted Tuscan loaf, because two salty things would cancel each other and a neutral, almost flat bread is exactly what a strong, peppered cure needs underneath it.
The craft is the balance between an assertive meat and a bland bread, and the slice that makes it work. Toscano is firmer and more savoury than Parma or San Daniele, so it is still cut thin but tolerates a fraction more body to keep its bite, and it is laid in loose folds so the salt and pepper distribute across the bite rather than landing in one slab. The unsalted bread is the deliberate counterweight, its plainness reading as the relief that lets the cure stay loud without becoming punishing. Nothing is added: no butter, no oil, because the ham already carries pepper and garlic and a third seasoning would only crowd it. It is eaten at room temperature, sliced to order.
The variations are the other raw-cured legs of Italy, and each is a separate ham with its own article. The sweet, salt-only prosciutto di Parma sliced to translucence; the pressed, slightly sweeter Friulian prosciutto di San Daniele; the robust mountain prosciutto di Norcia; the lightly beech-smoked prosciutto di Sauris; the lean, dark, gamey wild-boar prosciutto di cinghiale. Each is its own salt, its own seasoning, its own bread match, and each deserves its own article rather than being crowded in here.