Old Question (probably already answered) about Black and wands

[Lissa Hess]

No: HPFGUIDX 112754

M.E.:

My daughter is reading POA for the upteenth time and asked me this
question. In chapter 19 it says, "gowled Black, his own wand
pointing at Pettigrew, too..."
 From where did he get "his own wand"?
I opined that perhaps he was using Snape's wand, but she pointed out
that in OoP he is clearly using his own wand in the MoM. From where
did he get it? I guessed that Lupin got him one or that perhaps Mr
Olivander is secretly in the Order -- lame, I'll admit; but it's
late.
I'm sure this has been answered (or discussed) before but amd too
weary to look it up. Any thoughts, leads, answers?
Thanks,
M.E.

Lissa:

I'm pretty sure you're right about POA- Sirius is using Snape's wand in the 
Shrieking Shack.  I think there the "his own wand" bit is just referring to 
the wand in his hand, not that it's the wand he owns.

As far as OotP, there's a couple solutions:

1.) Dumbledore or Lupin has gotten him a wand.  Either of them would know 
the wood/core combination (I assume) of Sirius's wands.
2.) Peter Pettigrew has held on to Voldemort's wand all these years.  I 
don't think it's entirely inconceivable that Lupin would have held on to 
Sirius's, or at least an older wand of Sirius's.  It's a popular idea that 
Lupin and Sirius lived together before the Potters died (either for 
shipping reasons or the simple fact that Lupin wasn't exactly making much), 
but even disregarding that he could have gone back to Sirius's place for an 
old wand?  (That theory DEFINITELY requires the shipping...)  The only 
problem with Lupin having Sirius's wand is I would assume that his wand 
would be snapped when he went to Azkaban, and he had to have had his wand 
on him when he was taken.  (Geeze.  Wouldn't you think SOMEONE would at 
least do Prior Incantum on Sirius's wand?  Quickest way in the world to 
prove his innocence.  Hmmm.  Maybe he DIDN'T have his wand on him!)

I'd tend to go with #1, but #2 seems plausible as well.

Lissa