#BD2101 is a Mosrite-made Black Widow owned by Julien.  He says "it's a model made by the mosrite company.  sounds amazing and it's defnitly an all around bass.  I used it in metal bands to garage bands.  I purchased it on ebay in 2005 730 euros(if my memory is good..)
from a guy in england who forgot to say  the neck had been broken after a drop, but was well fixed and doesn't affect the bass at all.
I used it on an acoustic amp double channel amp  it was the perfect match."