The 39 bronze small boards (written in Greek characters between the IV and the III century b.C.) exhibited in the National Museum of Reggio Calabria, come from what has been called "The Archive of the Sanctuary of Olympian Zeus", sited in the Pirettina's district.
These small boards (which are of various size) weren't recovered during official excavations, instead they were discovered in 1959, by some peasants who, at first, hid them (probably with other small boards and with many other treasures which, unfortunately, lies who knows where) waiting for a chance to sell them. But afterwards they were eventfully recovered by the qualified authorities and then, after they were studied, placed in the museum.

BRONZE BOARD (Image source: G. Incorpora - Locri Antica e Gerace, Ponte Nuovo Editrice, Bologna 1980 - II Edizione - pag. 70)

BRONZE BOARD (Image source: G. Incorpora - Locri Antica e Gerace, Ponte Nuovo Editrice, Bologna 1980 - II Edizione - pag. 72)

At first, when they were studied, there was the hope that having been discovered in the city which was the native one of the first western legislator, Zaleukos, they could be his codex of laws; but they weren't.
After the first seconds of disappointment (but it isn't correct to describe it this way, because the experts were in front of some archaeological finds which are unique not only to Magna Graecia, but also to the whole Greek world) the experts were able to get a lot of information from the small boards; information which contributed to better describe the economic and politic history of Locri Epizephyrii. Moreover, these small boards gave exact information about the institutions, about the calendar and, also, about the onomastics of the ancient Locri.

BRONZE BOARD (Image source: G. Incorpora - Locri Antica e Gerace, Ponte Nuovo Editrice, Bologna 1980 - II Edizione - pag. 71)

Generally, these small boards are the registration of the money which the treasurers of the temple of Zeus lent to the city; loans which, according to the documentations of the small boards, were seldom repaid.