An amp cabinet with a flip-top head, which stores the head inside the cabinet when not in use. Used by Mark Tulin for the initial set of Teargarden songs (exact model not specified).
An excerpt from Kerry's blog, 2009/09/14:
Mr. Mark Tulin flew in from LAX a few hours ago and boy are his arms tired, but we are putting him straight to work anyway. It looks like he will playing a 1963 Fender Jazz bass through a 1963 Ampeg Portaflex flip-top bass amp... Why? Because, well, it just sounds awesome! This has nothing to do with the fact that I was born in 1963. Or maybe it does :)