Next we have the 1953 5 Peso Hidalgo. This coin was minted from 1951-1954. This is the 1968 Olympic Commemorative I mentioned earlier. Almost all of the coins I have seen of this type show the carbon spots. I would like to see an example without. The 1980 Onza is a bullion coin. Followed by another bullion coin, the 1983 Onza. The 1987 100 Peso Butterfly is a collector coin. This was given to me by my son as a Xmas gift 3 years ago. I told him I was looking for the 2000 Millennium Butterfly and this is what he found. I forgave him.
Nice coin indeed. Amanda has that coin too, and just posted big photos here http://www.cointalk.com/t209554-7/#post1508505 (and later posts to that topic). That coin was issued as part of a "25 Years WWF" series ... Christian