To some time. I found a Brazilian Commemorative Medal of the First World War. until then had not much value, for lack of sellers ...
I researched it, found it a series done in 1920 in Rio de Janeiro .. I do not know how many were produced (I believe there were many) still will not find very valuable. Because of my little research, today sellers charge very high prices around U.S. $ 900.00! this is absurd!
http://medalhasdeguerra.blogspot.com/search/label/Brasil%201%C2%AA%20Guerra
Lambert