This short series has some very interesting coins in it. There are a ton of doubled dies from the 1970s, on both the date and the obverse legend. The 81/82 is also very cool. There's a great article on these in the December issue of the US Mexican Numismatic Association. If you haven't seen it, it's worth a look. I don't have one of these yet but I'm looking....thanks for sharing yours.




















