I recently bought this cheaply because it looks to be in sad shape. It's been harshly cleaned and still has some hard green areas, but I bought it because I found the strike interesting. It appears to me it was struck once, rotated 90 degrees, then struck again but with a new blank covering the reverse die. On the obverse the VIIII and date of the first strike are clear, with bare traces of the bust. The portrait of Louis is plain from the second strike, as is the L.VIIII, but the date is barely readable. Most of the other legend is obscured from both strikes. On the reverse, most of the first strike is there, but it has been flattened in places by the second strike, presumably against a blank. The coin is about half thickness of a normal liard, barely over half the weight (2.44g vs about 4.5g normally), and a little wider than normal. The edge is rough, as if someone tried to remove metal to bring its width into tolerances. I know quality control in the 1600s was not up to modern standards, but I was wondering just how common this type of error would be?
