I have a B-Stock Brass snare.
It sounds amazing, and the only real issue is inside the drum where some of the finish is not as nice in two spots.
My B stock has a cut badge, but this one just doesn't have serial number.
You are looking at this one?
http://www.ebay.com/itm/Ludwig-Blac.../261452946148?pt=US_Drums&hash=item3cdfcf5ae4
At $699, that's about what a regular one would sell at.
My badge looks like this one:
http://www.ebay.com/itm/NEW-Ludwig-.../321171140659?pt=US_Drums&hash=item4ac74ab033
It seems like only a slight discount over what a regular one would be. I got mine a couple years ago, and it's a COB, but it was way less than an A stock B.E. would be.
This one doesn't have a serial number either:
http://www.ebay.com/itm/2013-LUDWIG.../130971926519?pt=US_Drums&hash=item1e7e88fff7
Could be a few NAMM display drums getting sold off. I haven't seen B Stocks with a full badge before though. Hmmmm....