By the way....

[Lyn J. Mangiameli]

Are we to assume the black spots are blast marks? If so, it appears blasting goes aways 
back, and of course that begs the question what justifed those old blast marks. 

Similarly, we find no blast mark over Charlus. You'd think he might have fallen into 
disfavor for taking in Sirius. Perhaps the "son" mark was of insufficient importance, but for 
a guy who thrice defied Voldemort, you'd think he might have fallen into sufficient disfavor 
too, at least if the defials ever came to public attention. Same goes for the presumptive 
Frank Longbottom. Likely all this doesn't mean much of anything, but should it, it 
suggests that either the Sirius's mother was a bit less impulsive than she appeared about 
blasting, the events of defiance came after Voldemort dropped from the Black's favor, or 
again, the acts of defiance were never widely known.