There appears to be a direct connection between the Roman goddess Juno and Roman coinage, this connection is highlighted by the fact that during the Republican period official Roman currency appears to have been minted at the temple of Juno Moneta (moneta from moneo – I warn/counsel/advise).
It is interesting to note the location of the Roman Republican mint is directly associated with the temple of Juno Moneta by two literary sources. Although some modern authors have disagreed with this location on archaeological grounds there is no real reason to doubt the ancient sources particularly Livy who was alive at the time that he is writing about and would be well aware of the location of the Roman mint. Another particularly interesting source it illustrates the connection between the goddess Juno and Roman currency is a coin depicting minting tools and Juno (see below).
The mint was located either in or directly adjacent to the temple of Juno Moneta. This location was probably chosen from a geographical and a symbolic perspective. The temple of Juno was located on the capital and was most likely one of the most prominent temples in Rome. Its location on the capital ensured a level of physical security because this was the most well defended part of Rome. Additionally, there are symbolic reasons that likely contributed to the choice of locating the mint here.
The temple of Juno Moneta was responsible for the maintenance of standards and measures within Rome. The standard Roman measurement that is the Roman foot was also known as the pes monetalis or the monetal foot. So it makes sense that coinage would fall into Juno’s purview as well, particularly as an intrinsic value coinage like that of the Rome was based on the weight of the coin. Juno Moneta also seems to have had a role in remembering or maintaining records of past events, which could explain the change to the depictions on Roman coins in the 130’s BC which saw them used as a means of highlighting figures and events of the past until the time of Caesar when the depictions on the coins again changed to include, for the first time, living individuals.