The Pontine Marshes which
form the southern part of the Campagna di Roma were first drained in
b.c. The improvements
fell into disrepair and the process was repeated by the Consul
Cethegus, Emperors Augustus, Nerva, Trajan and Theodoric, and many
The stamp design is based on a map by Serapino Salviate
entitled Carta esprimente lo Stato dell' Agro Pontino. The map
was engraved by Giovanni Bata Dasori, and printed as a plate in a
history of the various attempts to drain the marshes, entitled De'
Bonificamenti delle Terre Pontine Libri IV. Opera storica, critica,
legale, economica, idrostatica: compilata...e corredata di ogni genere
di documenti, piante topografiche, profile, &c., Roma, MDCCC.
In 1962 the Malaria Eradication issue included this map
which was drawn during the pontificate of Pius VI (1775-1796).