Brand, steel airtank used once or twice. Hydrotest date is 2009.
Not quite sure if you can use these things for nitrous, but people fill them with nitrogen.. so I guess it shouldn't be a problem.
Oh, and it's black, with a gauge to 4000 on the neck of it.
^ Not quite the same, but close.
Edit: Actually, whatever. Just shoot me an offer, and I'll think about it.