Until the year 1500, Brazil was a aboriginal country, with no economy and no currency. With the arrival of the Portuguese in the 16th century, the occupation of the territory of Brazil by a civilized people began, however, the introduction of coins as a means of payment would still take some time to happen.
It is important to know that the first Brazilian currency, the “mil-réis”, existed until 1942, in the 20th century. There were centuries of existence of the same currency unit. Interestingly, from 1942 to 1994, in just 52 years, Brazil had seven other currencies. This was due to the high inflation rates in the period. From 1994 until today, the monetary standard is the “real”.
It is very difficult for foreign collectors to obtain mil-reis banknotes. Even for Brazilians it is not easy. The banknotes and coins of brazilian currencies instituted after 1942, are much easier to obtain and collect.
See below the brazilian banknotes from 1942: