Ampeg Portaflex

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).
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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 :)