I wondered if it was his old one but on Stanley'shis web site it says ... On the road he is using a Spellbinder Upright Contrebasse, a copy of Stanley's main upright used at home, a 120-year old German flatback acoustic, which sports a Fishman BP-100-bridge mounted pickup.
So I guess its a new one and not the German one.
Dave, the page doesn't say how the bass was broken or any other details just that it was broken by the airline.
Jazzyvee