Renato Zanotti worked in the 1920s and 30s. He was succeeded by relatives who went on to maintain and improve on his work. The pinless Zanotti sidelocks made in the 1980s are superb masterpieces

But you are right, you keep buying English stuff, that keeps the prices on masterpieces like Zanotti at reasonable levels so reasonable people can afford them.

Notice that no one has shown any curiosity about the mechanical improvement on the sidelock action which improved safety and durability. Contrast with the eagerness to know about second tier stuff marketed by the cooperative Army and Navy stores, the British version of the PX.