sentences:  Disinfected mail began to be marked with wax seals starting from around 1816, and later with handstamps from around 1837.Disinfection of mail on a large scale ceased in the 1880s, but it was carried out in rare cases until at least 1936.In 1842, the Packet Office moved to the Banca Giuratale, and in March 1849 the Island Post Office also moved to this building, which came to be known as the General Post Office.